2024-03-29T14:40:31Z
//jios.foi.hr/index.php/index/oai
oai:jios.foi.hr:article/4
2008-03-14T10:10:53Z
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"080314 2008 eng "
1846-9418
1846-3312
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FINGERPRINTS PREPROCESSING USING WALSH FUNCTIONS
Bača, Miroslav
Rabuzin, Kornelije
Minutiae classification and fingerprint classification in fingerprint evaluating process are very important. Fingerprint image contains about 150 minutiae’s. When we compare two fingerprint images, we compare latent and non latent fingerprint and we try to find 12 minutiae’s placed on the same position on latent and non latent fingerprint images. After fingerprint image pre-processing we can perform classification or we can try to find minutiae. In this paper we describe the process of minutiae classification for comparison purposes. For that purpose we use Walsh function and Walsh transforms. Paper describes minutiae classification which is relatively new in recognition systems and gives contribution for development of practical fingerprint recognition systems. Paper also gives contribution in the theoretical part due to the fact that Walsh functions were not implemented in fingerprint pre-processing systems so far. The new symbolic database model for fingerprint storage gives multifunctional foundations for future research.
Faculty of Organization and Informatics, University of Zagreb
2006-06-10 10:10:55
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Journal of Information and Organizational Sciences; Vol. 30 No. 1 (2006)
eng
Copyright (c)
oai:jios.foi.hr:article/5
2008-07-16T12:51:25Z
jios:ART
nmb a2200000Iu 4500
"080314 2008 eng "
1846-9418
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PREDICTING THE INTENTION TO USE INTERNET – A COMPARATIVE STUDY
Brumec, Slaven
This article focuses on an application of the Triandis Model in researching Internet usage and the intention to use Internet. Unlike other TAM-based studies undertaken to date, the Triandis Model offers a sociological account of interaction between the various factors, particularly attitude, intention, and behavior. The technique of Structural Equation Modeling was used to assess the impact those factors have on intention to use the Internet in accordance with the relationships posited by the Triandis Model. The survey was administered to Croatian undergraduate students at and employed individuals. The survey results are compared to the results of a similar survey that was carried out by two universities in Hong Kong.
Faculty of Organization and Informatics, University of Zagreb
2006-06-10 10:10:55
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Journal of Information and Organizational Sciences; Vol. 30 No. 1 (2006)
eng
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oai:jios.foi.hr:article/6
2008-03-14T10:23:28Z
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THE MODEL OF THE DOCUMENT MANAGEMENT SYSTEM IN THE PUBLIC SECTOR
Brumec, Josip
Dobrović, Željko
Tomičić, Martina
Modern solutions regarding the use of unstructured information are based on the concept of Content Management (CM), [08] and [09]. This is a good solution for those document contents that will be generated once the CM is in place, but the question remains of what to do with hundreds of millions of documents that have been generated over the course of many years in the public sector. This article analyzes some of the features of the existing document systems in the public sector, and then discusses the needs of business processes reengineering, which are concerned with generating official decisions of relevance for both individual and business end-users. Furthermore, we propose a practically feasible model for the Document Management Systems (DMS) design, based on modern information and communication technologies that can manage and support the use of documents already in the system. In the end, this article takes a look at a general model for the calculation of costs and benefits associated with an introducton of a new DMS.
Faculty of Organization and Informatics, University of Zagreb
2006-06-10 10:10:55
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Journal of Information and Organizational Sciences; Vol. 30 No. 1 (2006)
eng
Copyright (c)
oai:jios.foi.hr:article/7
2008-03-14T10:32:53Z
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PRIORITISATION OF E-LEARNING FORMS BASED ON PAIR-WISE COMPARISONS
Hunjak, Tihomir
Begičević, Nina
There are different forms of teaching using ICT, and they differ according to the level of technological support, the role and tasks of the participants, the level of students’ participation, the physical location of the participants and their interaction. Distance learning is the common name for the process of obtaining knowledge and skills with the assistance of ICT and other forms of distance study. E-learning is a special form of such teaching. In terms of the teaching materials’ specific qualities, and the recommendation of teaching methods for successful teaching, there are different options for applying e-learning in teaching. E-learning can be used either as an independent form of teaching, or as a support to the already established systems of education, or even as their addition. The problem that is being solved in this paper is the prioritisation of e-learning forms for the specific teaching unit, subject, group of subjects, or the whole teaching programme. All this should be done regarding the context, which is characterised by the quality and innovative teaching, available professionals, equipment, possibility of students’ approach to technology, organization of teaching, and rules and regulations. This problem was solved with the assistance of AHP models developed in the process of group decision making supported by sw TeamEC2000.
Faculty of Organization and Informatics, University of Zagreb
2006-06-10 10:10:55
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Journal of Information and Organizational Sciences; Vol. 30 No. 1 (2006)
eng
Copyright (c)
oai:jios.foi.hr:article/8
2008-03-14T10:42:02Z
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IDENTIFICATION OF THE FREQUENCY AND THE INTENSITY OF THE THREATS IN THE FUNCTION OF DEVELOPMENT OF THE INFORMATION SYSTEM
Hutinski, Željko
Zlatović, Miran
Balaban, Igor
In the process of development of the security system of the information system, the risk assessment is the foundation for selection of the security measures. The reduction of the level of risk and the amount of costs depend upon the adequate selection of the security measures. The quality of the risk assessment depends upon the adequate assessment of the form and the intensity of the threats. If the forms of threats are not monitored in the business system, it should make its own threat assessment, or use experience of others. The best, but also the most time-consuming solution is to develop own security system, while the fastest way is to use experience of others. However, there is the problem of migration of some other solution to our own system. Depending upon the question whether we are adopting the experiences of domestic or foreign business systems, the question of the applicability to the system from the different business environment becomes relevant. This happens because of the significant differences in the form and intensity of threats in certain local environments or different branches of industry.
Faculty of Organization and Informatics, University of Zagreb
2006-06-10 10:10:55
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//jios.foi.hr/index.php/jios/article/view/8
Journal of Information and Organizational Sciences; Vol. 30 No. 1 (2006)
eng
Copyright (c)
oai:jios.foi.hr:article/9
2008-03-14T10:49:59Z
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A MODEL OF HETEROGENEOUS DISTRIBUTED SYSTEM FOR FOREIGN EXCHANGE PORTFOLIO ANALYSIS
Kermek, Dragutin
Vrček, Neven
Jakupić, Tomislav
The paper investigates the design of heterogeneous distributed system for foreign exchange portfolio analysis. The proposed model includes few separated and dislocated but connected parts through distributed mechanisms. Making system distributed brings new perspectives to performance busting where software based load balancer gets very important role. Desired system should spread over multiple, heterogeneous platforms in order to fulfil open platform goal. Building such a model incorporates different patterns from GOF design patterns, business patterns, J2EE patterns, integration patterns, enterprise patterns, distributed design patterns to Web services patterns. The authors try to find as much as possible appropriate patterns for planned tasks in order to capture best modelling and programming practices.
Faculty of Organization and Informatics, University of Zagreb
2006-06-10 10:10:55
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//jios.foi.hr/index.php/jios/article/view/9
Journal of Information and Organizational Sciences; Vol. 30 No. 1 (2006)
eng
Copyright (c)
oai:jios.foi.hr:article/10
2008-03-14T12:46:43Z
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SELECTING NEURAL NETWORK ARCHITECTURE FOR INVESTMENT PROFITABILITY PREDICTIONS
Kišasondi, Tonimir
Lovrenčić, Alen
In this paper we present a modified neural network architecture and an algorithm that enables neural networks to learn vectors in accordance to user designed sequences or graph structures. This enables us to use the modified network algorithm to identify, generate or complete specified patterns that are learned in the training phase. The algorithm is based on the idea that neural networks in the human neurocortex represent a distributed memory of sequences that are stored in invariant hierarchical form with associative access. The algorithm was tested on our custom built simulator that supports the usage of our ADT neural network with standard backpropagation and our custom built training algorithms, and it proved to be useful and successful in modelling graphs.
Faculty of Organization and Informatics, University of Zagreb
2006-06-10 10:10:55
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//jios.foi.hr/index.php/jios/article/view/10
Journal of Information and Organizational Sciences; Vol. 30 No. 1 (2006)
eng
Copyright (c)
oai:jios.foi.hr:article/11
2012-04-19T16:43:01Z
jios:ART
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THE ROLE OF INFORMATION COMUNICATION TECHNOLOGY IN SIX SIGMA APPROACH IMPLEMENTATION
Kondić, Živko
Dušak, Vesna
The article discusses Six Sigma Methodology as business philosophy assuring excellent product or service quality and continuous process improving to realise highest customer satisfaction level. There are analysed methodology advantages allowing defects and costs reduction and customer satisfaction improvement. Also, authors discuss methodology successful implementation according to gathering data on business processes regulation indicators values variation, and issued products or services performances. The results of implementation process of the Six Sigma Methodology in business system depend on prompt and correct data needed for statistical analysis, and its accessibility via organisation’ information system. Correlation between implementation of Six Sigma Methodology and information system development is so strong that non-conformances could cause the Six Sigma Methodology implementation fall.
Faculty of Organization and Informatics, University of Zagreb
2006-06-10 10:10:55
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Journal of Information and Organizational Sciences; Vol. 30 No. 1 (2006)
eng
Copyright (c)
oai:jios.foi.hr:article/12
2008-03-14T12:55:40Z
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EVALUATION OF ARIS AND ZACHMAN FRAMEWORKS AS ENTERPRISE ARCHITECTURES
Kozina, Melita
The significance of integral business systems based on closer alignment of information technology to business processes has grown over the last ten years. Comprehensive business frameworks are necessary to capture the entire complexity of such systems. These frameworks called enterprise architectures can provide the conceptual foundation necessary for building and managing the integral business system and all its components. The goal of this paper was to analyze the Architecture of Integrated Information Systems (ARIS) and the Zachman frameworks, to define the criteria for comparison and evaluation of these approaches, and determine their level of complement. Furthermore, the contents of the paper define the generic model of business system management supported by said concepts (frameworks) and analyzes their orientation towards value.
Faculty of Organization and Informatics, University of Zagreb
2006-06-10 10:10:55
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Journal of Information and Organizational Sciences; Vol. 30 No. 1 (2006)
eng
Copyright (c)
oai:jios.foi.hr:article/13
2008-03-14T13:30:11Z
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IMPROVED VIRTUAL CIRCUIT ROUTING ALGORITHM FOR WIRELESS SENSOR NETWORKS UNDER THE ASPECT OF POWER AWARENESS
Ali Minhas, Abid
Trathnigg, Thomas
Steger, Christian
Weiß, Reinhold
Routing algorithms have shown their importance in the power aware wireless micro-sensor networks. In this paper first we present virtual circuit algorithm (VCRA), a routing algorithm for wireless sensor networks. We analyze the power utilized by nodes to lengthen the battery life and thus improving the lifetime of wireless sensor network. We discuss VCRA in comparison with the Multihoprouter, an algorithm developed by UC Berkeley. Then we present Improved Virtual Circuit Routing Algorithm (IVCRA) which is an improved form of VCRA. In IVCRA node failure detection and path repairing scheme has been implemented. We also present the energy analysis of IVCRA and prove that IVCRA is the best choice. We first implement our routing algorithms in simulator TOSSIM and then on real hardware of mica2 mote-sensor network platform and prove the reliable routing of the data packets from different nodes to the base station. The motes used as nodes in our mote-sensor network are from Berkeley USA. By using simulator POWERTOSSIM, we estimate and present the energy utilized by different nodes of the network. At the end we present a comparison of our work with the network layer of Zigbee/IEEE 802.15.4, which is an emerging standard for wireless sensor networks and then compare its energy efficiency with the packet size chosen for our algorithm.
Faculty of Organization and Informatics, University of Zagreb
2006-06-10 10:10:55
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//jios.foi.hr/index.php/jios/article/view/13
Journal of Information and Organizational Sciences; Vol. 30 No. 1 (2006)
eng
Copyright (c)
oai:jios.foi.hr:article/14
2008-03-14T13:34:56Z
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A SURVEY OF THE PROPERTIES OF AGENTS
Rabuzin, Kornelije
Maleković, Mirko
Bača, Miroslav
In the past decade agent systems were considered to be as one of the major fields of study in Artificial Intelligence (AI) field. Many different definitions of agents were presented and several different approaches describing agency can be distinguished. While some authors have tried to define “what” an agent really is, others have tried to identify agents by means of properties which they should possess. Most authors agree on these properties (at least basic set of properties) which are intrinsic to agents. Since agent's definitions are not consistent, we are going to give an overview and list the properties intrinsic to an agent. Many different adjectives were attached to the term agent as well and many different kinds of agents and different architectures emerged too. The aim of this paper it go give an overview of what was going on in the field while taking into consideration main streams and projects. We will also present some guidelines important when modelling agent systems and say something about security issues. Also, some existing problems which restrict the wider usage of agents will be mentioned too.
Faculty of Organization and Informatics, University of Zagreb
2006-06-10 10:10:55
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//jios.foi.hr/index.php/jios/article/view/14
Journal of Information and Organizational Sciences; Vol. 30 No. 1 (2006)
eng
Copyright (c)
oai:jios.foi.hr:article/15
2008-03-14T14:38:46Z
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VALIDATION OF THEORETICAL MODEL FOR DECISION MAKING ABOUT E-LEARNING IMPLEMENTATION
Begičević, Nina
Divjak, Blaženka
In the paper the possibility to use mathematical models and statistical techniques in strategic planning and decision making about e-learning is presented. Strategic planning and decision making has been covered as consisting of four phases: (1) intelligence, (2) design, (3) choice and (4) implementation. Each of the phases will be described in this paper, but the accent will be put on the statistical evaluation of the results of the questionnaire which was based on the developed theoretical model for decision making about e-learning implementation in the higher education sector. In general, the main objectives of this paper are: (1) validation of the first theoretical model for decision making about e-learning implementation in the higher education sector, by means of factor analysis and (2) reduction of a large number of variables to a smaller number of factors, i.e. designing the improved theoretical model, for modelling purposes (developing AHP & ANP models).
Faculty of Organization and Informatics, University of Zagreb
2006-12-18 14:31:37
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Journal of Information and Organizational Sciences; Vol. 30 No. 2 (2006)
eng
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oai:jios.foi.hr:article/16
2008-03-14T14:41:40Z
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BUSINESS PROCESS MODELLING: A FOUNDATION FOR KNOWLEDGE MANAGEMENT
Bosilj-Vukšić, Vesna
Knowledge management (KM) is increasingly recognised as a strategic practice of knowledge-intensive companies, becoming an integral part of an organisation's strategy to improve business performance. This paper provides an overview of business process modelling applications and analyses the relationship between business process modelling and knowledge management projects. It presents the case study of Croatian leading banks and the insurance company, discussing its practical experience in conducting business process modelling projects and investigating the opportunity for integrating business process repository and organisational knowledge as the foundation for knowledge management system development.
Faculty of Organization and Informatics, University of Zagreb
2006-12-18 14:31:37
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Journal of Information and Organizational Sciences; Vol. 30 No. 2 (2006)
eng
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oai:jios.foi.hr:article/17
2008-03-14T15:11:03Z
jios:ART
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RETHINKING OF ENTREPRENEURSHIP: TOWARDS SOCIAL RESPONSIBILITY
Klačmer Čalopa, Marina
Cingula, Marijan
Social entrepreneurship is highlighted as a result of general entrepreneurship development because the traditional entrepreneurial factors are accomplished with the social aspects of common good. Entrepreneur's responsibility in choosing the main business activity within an industry increases if the way he conducts his activities is considered. Institutional support for social entrepreneurship is achieved by generating many business activities in order to fulfil different kinds of social needs. Social entrepreneurship is possible if both entrepreneur’s initiative and institutional support for small and medium sized enterprises (SME) are included in performing for traditionally non-profit activities. Allowing private initiative to fulfil the real needs of different users in social, educational, cultural and other non-profit fields is a good way to support SMEs. However, the institutional control should still remain in place in order to protect the minimum performing standards.The development of social entrepreneurship in transition countries is important for general economic development, but also for the supporting values of ethics in business activities.
Faculty of Organization and Informatics, University of Zagreb
2006-12-18 14:31:37
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Journal of Information and Organizational Sciences; Vol. 30 No. 2 (2006)
eng
Copyright (c)
oai:jios.foi.hr:article/18
2008-03-14T15:21:05Z
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ENHANCING LEAN SUPPLY CHAIN MATURITY WITH BUSINESS PROCESS MANAGEMENT
Jaklic, Jurij
Trkman, Peter
Groznik, Ales
Indihar Stemberger, Mojca
In today’s global market the main focus of competition is not only between different companies but also between supply chains. Technological changes and organizational improvements are important for effective supply chain management (SCM), however, the main cause of SCM improvements is not the implementation of an information system (IS) itself, but rather a change and an integration of business processes. The paper summarizes the most important concepts of SCM and specifically concentrates on the importance of business process management (BPM) in supply chains, because full advantages can be realized when business processes in the supply chain are well defined, integrated and managed. The main purpose of this paper is to show that successful SCM calls for the maturity of supply chain processes in all involved companies and at the supply chain level, which can be realized by using effective BPM methods. A necessary condition for growing of SCM in terms of supply chain process maturity levels is an inter-organizational information system development and process renovation. Yet, BPM should not be considered as a one-time project of IS implementation and process change, but as a permanent process performance measurement, analysis and continuous improvement of the supply chain processes. The concepts are illustrated with a case study of fuel supply process.
Faculty of Organization and Informatics, University of Zagreb
2006-12-18 14:31:37
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Journal of Information and Organizational Sciences; Vol. 30 No. 2 (2006)
eng
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oai:jios.foi.hr:article/19
2008-03-14T15:26:33Z
jios:ART
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FORMAL MODELLING OF BUSINESS RULES: WHAT KIND OF TOOL TO USE?
Lovrenčić, Sandra
Rabuzin, Kornelije
Picek, Ruben
Business rules are today essential parts of a business system model. But presently, there are still various approaches to, definitions and classifications of this concept. Similarly, there are also different approaches in business rules formalization and implementation. This paper investigates formalization using formal language in association with easy domain modelling. Two of the tools that enable such approach are described and compared according to several factors. They represent ontology modelling and UML, nowadays widely used standard for object-oriented modelling. A simple example is also presented.
Faculty of Organization and Informatics, University of Zagreb
2006-12-18 14:31:37
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Journal of Information and Organizational Sciences; Vol. 30 No. 2 (2006)
eng
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oai:jios.foi.hr:article/20
2008-03-14T15:29:47Z
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REASONING ABOUT THE GAME „CLUE“ BY USING OTTER
Maliković, Marko
In this article the possibilities of reasoning about the card version of the game Clue by using OTTER - system for automatic theorem proving have been presented. The game Clue, as game based on knowledge have been modelled by PVETO logic - propositional multi-modal epistemic logic with temporal parameter adapted for reasoning with OTTER. PVETO logic is an extension of S5m logic and it’s most important characteristics are the introduction of special derivation predicates for every participant in the card game and introduction of temporal parameter. Temporal parameter refers to the moment of time in which we follow the truthfulness of the epistemic formulae.
Faculty of Organization and Informatics, University of Zagreb
2006-12-18 14:31:37
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//jios.foi.hr/index.php/jios/article/view/20
Journal of Information and Organizational Sciences; Vol. 30 No. 2 (2006)
eng
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oai:jios.foi.hr:article/21
2008-03-14T15:34:04Z
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BUSINESS OPERATIONS BETWEEN EFFICIENCY AND EFFECTIVENESS
Potočan, Vojko
The existence and development of organizations depends on achievement of requisite holistic efficiency and effectiveness of their operations and bahaviour. But in theory (of organization and management) and business practice do not exist common understanding of efficiency and effectiveness, their relations and sinergies. When we try to investigate their definitions and relations we must take into account problems of many conflicts, which reflect their “different non-optimalty (unsuitability, inapproapriateness)”. This contribution discusses three theses: 1) how to more (requisitely) holistically understand relations between efficiency and effectiveness in the frame of business (its working and functioning), 2) how to understand their relations from the viewpoint of conflicts, and 3) one can create solution to remove a problem of different conflicts between efficiency and effectiveness in business.
Faculty of Organization and Informatics, University of Zagreb
2006-12-18 14:31:37
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//jios.foi.hr/index.php/jios/article/view/21
Journal of Information and Organizational Sciences; Vol. 30 No. 2 (2006)
eng
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oai:jios.foi.hr:article/22
2008-03-14T15:39:58Z
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HOW TO CALCULATE INFORMATION VALUE FOR EFFECTIVE SECURITY RISK ASSESSMENT
Sajko, Mario
Rabuzin, Kornelije
Bača, Miroslav
The actual problem of information security (infosec) risk assessment is determining the value of information property or asset. This is particularly manifested through the use of quantitative methodology in which it is necessary to state the information value in quantitative sizes. The aim of this paper is to describe the evaluation possibilities of business information values, and the criteria needed for determining importance of information. For this purpose, the dimensions of information values will be determined and the ways used to present the importance of information contents will be studied. There are two basic approaches that can be used in evaluation: qualitative and quantitative. Often they are combined to determine forms of information content. The proposed criterion is the three-dimension model, which combines the existing experiences (i.e. possible solutions for information value assessment) with our own criteria. An attempt for structuring information value in a business environment will be made as well.
Faculty of Organization and Informatics, University of Zagreb
2006-12-18 14:31:37
application/pdf
//jios.foi.hr/index.php/jios/article/view/22
Journal of Information and Organizational Sciences; Vol. 30 No. 2 (2006)
eng
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oai:jios.foi.hr:article/23
2008-03-14T15:45:19Z
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FACTORS WHICH HAVE FATAL INFLUENCE ON ERP IMPLEMENTATION ON SLOVENIAN ORGANIZATIONS
Sternad, Simona
Bobek, Samo
A lot of ERP implementations are failure, because organizations which bought ERP systems thought that this was all what they should do. But failure cases of ERP implementation showed, that organizations have to do extensive work on implementation. Because of that, organizations have to create conditions, in which they can implement chosen solution in expected time, scope and evaluated costs. That means that organizations should be aware of what most critical factors for success (CSF) in ERP implementations are. The high failure rate of ERP implementations call for better understanding of critical success factors (CSFs). In the paper we will research the CSFs in ERP implementation by studying published prior research on the field of ERP implementation. We will build a model of CSFs for ERP implementation, discuss in depth some most important factors and present preliminary results of importance CSFs of ERP implementation in Slovenian organizations.
Faculty of Organization and Informatics, University of Zagreb
2006-12-18 14:31:37
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Journal of Information and Organizational Sciences; Vol. 30 No. 2 (2006)
eng
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oai:jios.foi.hr:article/24
2008-03-14T15:48:58Z
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MODEL-BASED VALIDATION AND VERIFICATION OF ANOMALIES IN LEGISLATION
Strahonja, Vjeran
An anomaly in legislation is absence of completeness, consistency and other desirable properties, caused by different semantic, syntactic or pragmatic reasons. In general, the detection of anomalies in legislation comprises validation and verification. The basic idea of research, as presented in this paper, is modelling legislation by capturing domain knowledge of legislation and specifying it in a generic way by using commonly agreed and understandable modelling concepts of the Unified Modelling Language (UML). Models of legislation enable to understand the system better, support the detection of anomalies and help to improve the quality of legislation by validation and verification. By implementing model-based approach, the object of validation and verification moves from legislation to its model. The business domain of legislation has two distinct aspects: a structural or static aspect (functionality, business data etc.), and a behavioural or dynamic part (states, transitions, activities, sequences etc.). Because anomalism can occur on two different levels, on the level of a model, or on the level of legislation itself, a framework for validation and verification of legal regulation and its model is discussed. The presented framework includes some significant types of semantic and syntactic anomalies. Some ideas for assessment of pragmatic anomalies of models were found in the field of software quality metrics. Thus pragmatic features and attributes can be determined that could be relevant for evaluation purposes of models. Based on analogue standards for the evaluation of software, a qualitative and quantitative scale can be applied to determine the value of some feature for a specific model.
Faculty of Organization and Informatics, University of Zagreb
2006-12-18 14:31:37
application/pdf
//jios.foi.hr/index.php/jios/article/view/24
Journal of Information and Organizational Sciences; Vol. 30 No. 2 (2006)
eng
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oai:jios.foi.hr:article/25
2008-03-18T14:27:34Z
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TOWARDS AN OPEN BIOMETRIC ONTOLOGY
Bača, Miroslav
Schatten, Markus
Rabuzin, Kornelije
Over the last decade we faced a great number of publications in the field of biometrics. Many new biometric methods, techniques, models, metrics and characteristics were proposed. Due to this explosion of research, scientific and professional papers certain inconsistencies in terminology. What some authors call a biometric method, others call model, system or even characteristic. There wasn't enough effort in creating a unique systematization and categorization which would approach the stated issues and open new areas of research. We argue that it is possible to approach biometrics in a narrower and in a broader perspective. We observed biometrics in the narrower perspecive and created a unique framework for the systematization and categorization of biometric methods, models, characteristics and patterns based on a general biometric system. This systematization is a fundamental step forward towards the creation of an open biometrics ontology.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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2008-03-18T15:04:14Z
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DEVELOPMENT OF AHP BASED MODEL FOR DECISION MAKING ON E-LEARNING IMPLEMENTATION
Begičević, Nina
Divjak, Blaženka
Hunjak, Tihomir
Strategic planning of e-learning implementation includes decision making about the most suitable form of implementing e-learning on different levels. Decision making about e-learning implementation has been covered as consisting of four phases: (1) intelligence, (2) design, (3) choice and (4) implementation. During the Intelligence phase we have precisely identified our central decision problem and have conducted situation analysis. In the Design phase we have developed alternatives and established criteria and subcriteria. Then, we have created the questionnaire about the importance of the advantages and goals of e-learning implementation and about criteria and subcriteria essential for decision making. The survey has been conducted on the sample of 90 elearning experts in Croatia. Further, we connected these findings with the results of the factor analysis which was performed on the complete survey. The results of the factor analysis have served as input in the multicriteria decision model (AHP) that we have developed in the Choice phase. The AHP model will be presented in the article and qualitative and quantitative evaluation of the model will be indicated.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/27
2008-03-18T15:10:38Z
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LEARNING PHENOMENA IN MANUFACTURING AND ARTIFICIAL NEURAL NETWORK
Car, Miroslav
In the industrially advanced countries, that are different from our ex and present countries, to learning phenomena has been dedicated a significant attention for the last 60 years. One of more basic reasons is multiple purposes of results. Until now, there have been applied various approaches, methods and procedures for empirical data approximation, and in this articles some possibilities of artificial neural network application are researched.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/28
2008-03-18T15:19:33Z
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METHODOLOGY FRAMEWORK FOR PROCESS INTEGRATION AND SERVICE MANAGEMENT
Galinec, Darko
Vidović, Slavko
History of information systems development was driven by business system's functions automation and mergers and acquisitions - business subjects integration into a whole. Modern business requires business processes integration through their dynamics and thus enterprise application integration (EAI) as well. In this connection it is necessary to find ways and means of application integration and interaction in a consistent and reliable way. The real-time enterprise (RTE) monitors, captures and analyzes root causes and overt events that are critical to its success the instant those events occur [6]. EAI is determined by business needs and business requirements. It must be based on business process repository and models, business integration methodology (BIM) and information flow as well. Decisions concerning technology must be in function of successful application integration. In this paper EAI methodological framework and technological concepts for its achievements are introduced.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/29
2008-03-18T15:27:08Z
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INFORMATION SYSTEM SECURITY THREATS CLASSIFICATIONS
Gerić, Sandro
Hutinski, Željko
Information systems are exposed to different types of security risks. Theconsequences of information systems security (ISS) breaches can vary from e.g. damaging the data base integrity to physical "destruction" of entire information system facilities, and can result with minor disruptions in less important segments of information systems, or with significant interruptions in information systems functionality. The sources of security risks are different, and can origin from inside or outside of information system facility, and can be intentional or unintentional. The precise calculation of loses caused by such incidents is often not possible because a number of small scale ISS incidents are never detected, or detected with a significant time delay, a part of incidents are interpreted as an accidental mistakes, and all that results with an underestimation of ISS risks. This paper addresses the different types and criteria of information system security risks (threats) classification and gives an overview of most common classifications used in literature and in practice. We define a common set of criteria that can be used for information system security threats classification, which will enable the comparison and evaluation of different security threats from different security threats classifications.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/30
2008-03-18T15:38:30Z
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ROLE OF UML SEQUENCE DIAGRAM CONSTRUCTS IN OBJECT LIFECYCLE CONCEPT
Grgec, Miroslav
Mužar, Robert
When modeling systems and using UML concepts, a real system can be viewed in several ways. The RUP (Rational Unified Process) defines the "4 + 1 view": 1. Logical view (class diagram (CD), object diagram (OD), sequence diagram (SD), collaboration diagram (COD), state chart diagram (SCD), activity diagram (AD)), 2.Process view (use case diagram, CD, OD, SD, COD, SCD, AD), 3. Development view (package diagram, component diagram), 4. Physical view (deployment diagram), and 5. Use case view (use case diagram, OD, SD, COD, SCD, AD) which combines the four mentioned above. With sequence diagram constructs we are describing object behavior in scope of one use case and their interaction. Each object in system goes through a so called lifecycle (create, supplement object with data, use object, decommission object). The concept of the object lifecycle is used to understand and formalize the behavior of objects from creation to deletion. With help of sequence diagram concepts our paper will describe the way of interaction modeling between objects through lifeline of each of them, and their importance in software development.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/31
2008-03-18T15:42:32Z
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FABASOFT BEST PRACTICES AND TEST METRICS MODEL
Hrgarek, Nadica
Software companies have to face serious problems about how to measure the progress of test activities and quality of software products in order to estimate test completion criteria, and if the shipment milestone will be reached on time. Measurement is a key activity in testing life cycle and requires established, managed and well documented test process, defined software quality attributes, quantitative measures, and using of test management and bug tracking tools. Test metrics are a subset of software metrics (product metrics, process metrics) and enable the measurement and quality improvement of test process and/or software product. The goal of this paper is to briefly present Fabasoft best practices and lessons learned during functional and system testing of big complex software products, and to describe a simple test metrics model applied to the software test process with the purpose to better control software projects, measure and increase software quality.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/32
2008-03-18T15:46:45Z
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BIOMETRIC CRYPTOGRAPHY AND NETWORK AUTHENTICATION
Kišasondi, Tonimir
Bača, Miroslav
Lovrenčić, Alen
In this paper we will present some schemes for strengthening network authentification over insecure channels with biometric concepts or how to securely transfer or use biometric characteristics as cryptographic keys. We will show why some current authentification schemes are insufficient and we will present our concepts of biometric hashes and authentification that rely on unimodal and multimodal biometrics. Our concept can be applied on any biometric authentification scheme and is universal for all systems.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/33
2008-03-18T16:52:45Z
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GENERATION OF A SET OF KEY TERMS CHARACTERISING TEXT DOCUMENTS
Machova, Kristina
Szaboova, Andrea
Bednar, Peter
The presented paper describes statistical methods (information gain, mutual X^2 statistics, and TF-IDF method) for key words generation from a text document collection. These key words should characterise the content of text documents and can be used to retrieve relevant documents from a document collection. Term relations were detected on the base of conditional probability of term occurrences. The focus is on the detection of those words, which occur together very often. Thus, key words, which consist from two terms were generated additionally. Several tests were carried out using the 20 News Groups collection of text documents.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/34
2008-03-21T09:11:41Z
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WEATHER FORECAST DATA SEMANTIC ANALYSIS IN F-LOGIC
Meštrović, Ana
Martinčić-Ipšić, Sanda
Čubrilo, Mirko
This paper addresses the semantic analysis problem in a spoken dialog system developed for the domain of weather forecasts. The main goal of semantic analysis is to extract the meaning from the spoken utterances and to transform it into a domain database format. In this work a semantic database for the domain of weather forecasts is represented using the F-logic formalism. Semantic knowledge is captured through semantic categories a semantic dictionary using phrases and output templates. Procedures for semantic analysis of Croatian weather data combine parsing techniques for Croatian language and slot filling approach. Semantic analysis is conducted in three phases. In the first phase the main semantic category for the input utterance is determined. The lattices are used for hierarchical semantic relation representation and main category derivation. In the second phase semantic units are analyzed and knowledge slots in the database are filled. Since some slot values of input data are missing in the third phase, incomplete data is updated with missing values. All rules for semantic analysis are defined in the F-logic and implemented using the FLORA-2 system. The results of semantic analysis evaluation in terms of frame and slot error rates are presented.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/35
2008-03-21T09:19:33Z
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AN AUTOMATIC AND METHODOLOGICAL APPROACH FOR ACCESSIBLE WEB APPLICATIONS
Moreno, Lourdes
Castro, Elena
Martinez, Paloma
Semantic Web approaches try to get the interoperability and communication among technologies and organizations. Nevertheless, sometimes it is forgotten that the Web must be useful for every user, consequently it is necessary to include tools and techniques doing Semantic Web be accessible. Accessibility and usability are two usually joined concepts widely used in web application development, however their meaning are different. Usability means the way to make easy the use but accessibility is referred to the access possibility. For the first one, there are many well proved approaches in real cases. However, accessibility field requires a deeper research that will make feasible the access to disable people and also the access to novel non-disable people due to the cost to automate and maintain accessible applications. In this paper, we propose one architecture to achieve the accessibility in web-environments dealing with the WAI accessibility standard and the Universal Design paradigm. This architecture tries to control the accessibility in web applications development life-cycle following a methodology starting from a semantic conceptual model and leans on description languages and controlled vocabularies.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/36
2008-03-21T09:32:00Z
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INTERNET ENABLED PUBLIC SERVICES AS A DRIVER OF ECONOMIC GROWTH -CASE STUDY ECROATIA 2006 -
Novotny, Damir
Sabati, Zvonimir
The Barcelona European Council called on the European Commission to draw up an eEurope Action Plan in order to widespread penetration of ICT, as powerful driver of growth and employment. Availability of modern on-line public services through e-Government, e-Learning, e-Health and e-Business is to be secured by the Action Plan. The eEurope 2005 is succeeding eEurope 2002 Action Plan which comprises four separate but interlinked tools: policy measures, exchange of good practices, monitoring and benchmarking and overall co ordination of existing policies. Croatia is candidate for accession to EU by 2009, which means that Croatian Government has to implement eEurope Action plan 2005 and Commission's new strategic framework, i2010 - European Information Society 2010. In first part of the paper authors are presenting overall framework of eEurope Action Plan 2005 as well i2010 strategic framework. For the purposes of the paper, authors have conducted a research availability of on-line public services through government, e-Learning, e-Health and e-Business in Croatia 2006.The results of the survey has been benchmarked to the results of similar surveys in New Europe countries.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/37
2008-03-21T09:37:29Z
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SOME APPROACHES TO TEXT MINING AND THEIR POTENTIAL FOR SEMANTIC WEB APPLICATIONS
Paralič, Jan
Paralič, Marek
In this paper we describe some approaches to text mining, which are supported by an original software system developed in Java for support of information retrieval and text mining (JBowl), as well as its possible use in a distributed environment. The system JBowl1 is being developed as an open source software with the intention to provide an easily extensible, modular framework for pre-processing, indexing and further exploration of large text collections. The overall architecture of the system is described, followed by some typical use case scenarios, which have been used in some previous projects. Then, basic principles and technologies used for service-oriented computing, web services and semantic web services are presented. We further discuss how the JBowl system can be adopted into a distributed environment via technologies available already and what benefits can bring such an adaptation. This is in particular important in the context of a new integrated EU-funded project KP-Lab2 (Knowledge Practices Laboratory) that is briefly presented as well as the role of the proposed text mining services, which are currently being designed and developed there.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/38
2008-03-21T15:57:14Z
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DEVELOPING SYSTEM DYNAMICS MODELS WITH "STEP-BY-STEP" APPROACH
Pejić-Bach, Mirjana
Čerić, Vlatko
System dynamics is a powerful tool that enhances learning about company, market and competitors; portrays the cognitive limitations on the information gathering and processing power of human mind; facilitates the practice of considering opinions; and supports building of ";What if"; scenarios. Although the literature on system dynamics modeling is very rich with applications in many fields, not many papers on developing system dynamics models were published so far. In this paper we portray current approaches to the development of system dynamics models. These are (1) model development based on influence diagram, (2) model development based on the identification of resources and their states, (3) usage of generic structures for specific domain field, and (4) component strategy for the formulation of system dynamics models. Validation is an important issue that none of these approaches tackles. We propose a ";step-by-step"; approach that integrates validation with developing process of system dynamics models. This approach will be demonstrated on the example of development of a simple inventory model.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/39
2008-03-21T10:14:58Z
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RESOLVING DATABASE CONSTRAINT COLLISIONS USING IIS*CASE TOOL
Ristić, Sonja
Luković, Ivan
Pavićević, Jelena
Mogin, Pavle
Integrated Information Systems*Case (IIS*Case) R.6.21 is a CASE tool that we developed to support automated database (db) schema design, based on a methodology of gradual integration of independently designed subschemas into a database schema. It provides complete intelligent support for developing db schemas and enables designers to work together and cooperate reaching the most appropriate solutions. The process of independent design of subschemas may lead to collisions in expressing the real world constraints and business rules. IIS*Case uses specialized algorithms for checking the consistency of constraints embedded in the database schema and the subschemas. IIS*Case supports designers in reviewing and validating results obtained after each step of the design process. The paper outlines the process of resolving collisions. A case study based on an imaginary production system is used to illustrate the application of IIS*Case. Different outcomes and their consequences are presented.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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2008-03-21T10:20:23Z
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SUCCESS AND IMPACT FACTORS OF CARD-BASED LOYALTY SYSTEMS - AN EMPIRICAL ANALYSIS IN THE GERMAN RETAIL SECTOR
Ruch, Markus
The retail sector in Germany has also been badly hit by intensifying international competition. Confronted with lowering margins and the movement of customers to the most favourable provider in each case, it became increasingly more difficult for companies to reach such goals as turnover and market share inputs. With the introduction of Card-based Loyalty Systems (CBLS), an instrument appears to have been found which increases customer retention through the evaluation of purchasing information and enables the companies to realize their goals even under difficult market conditions. The provision for this, however, is the permanent acceptance of the customer with regard to these systems.
This paper first gives an overview of the connections between CBLS and increased customer retention before their impact factors are empirically analyzed for consumer utility. If these factors flow into a cost-benefit analysis, it appears that privacy of the consumers is endangered in the long term and an added value and consequently the preconditional permanent acceptance of the customer is not necessarily given. The resulting question ";Why do customers make use of CBLS anyway?"; can be answered using the approach of hyperbolic utility-discounting.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/41
2008-03-21T10:34:35Z
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DECISION SUPPORT SYSTEM TO SUPPORT DECISION PROCESSES WITH DATA MINING
Rupnik, Rok
Kukar, Matjaž
Traditional techniques of data analysis do not enable the solution of all kind of problems and for that reason they have become insufficient. This caused a newinterdisciplinary field of data mining to arise, encompassing both classical statistical, and modern machine learning techniques to support the data analysis and knowledge discovery from data. Data mining methods are powerful in dealing with large quantities of data, but on the other hand they are difficult to master by business users to facilitate decision support. In this paper we introduce our approach to integration of decision support system with data mining. We discuss the role of data mining to facilitate decision support, the use of data mining methods in decision support systems, discuss applied approaches and introduce a data mining decision support system called DMDSS - Data Mining Decision Support System. We also present some obtained results and plans for future development.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/42
2008-03-21T10:41:26Z
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IMPLEMENTATION OF ICT AND THE ISO 9001:2000 STANDARD CAN IMPROVE THE QUALITY OF STUDYING IN CROATIA
Sinković, Giorgio
Šehanović, Jusuf
The process of integrating the Republic of Croatia in the EU calls for an adaptation and improvement of many of the Croatian society elements, among which there is also the education system as a foundation for creating of a generation who will, by their knowledge and a world view, easily embed into the European virtues. The conformation of the high education system has been consolidated under the term "the Bologna process". Although the basic accent of this process has been put to conformation in order to form a unique European education system, the efficiency of knowledge acquiring process within the sole endeavour to ensure the quality, also represents one of the main objectives. The article hereto points to the possible advantages of implementing the ICT and the international ISO 9000 standards as a base for an efficient increase of the quality of studying in the Republic of Croatia.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/43
2008-03-21T10:50:05Z
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PROACTIVE APPROACH TO THE INCIDENT AND PROBLEM MANAGEMENT IN COMMUNICATION NETWORKS
Strahonja, Vjeran
Saletović, Kristijan
Proactive approach to communication network maintenance has the capability of enhancing the integrity and reliability of communication networks, as well as of reducing maintenance costs and overall number of incidents. This paper presents approaches to problem and incident prevention with the help of root-cause analysis, aligning that with the goal to foresee software performance. Implementation of proactive approach requires recognition of enterprise's current level of maintenance better insights into available approaches and tools, as well as their comparison, interoperability, integration and further development. The approach we are proposing and elaborating in this paper lies on the construction of a metamodel of the problem management of information technology, particularly the proactive problem management. The metamodel is derived from the original ITIL specification and presented in an object-oriented fashion by using structure (class) diagrams conform to UML notation. Based on current research, appropriate metrics based on the concept of Key Performance Indicators is suggested.
Faculty of Organization and Informatics, University of Zagreb
2007-06-17 14:27:34
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Journal of Information and Organizational Sciences; Vol. 31 No. 1 (2007)
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oai:jios.foi.hr:article/44
2008-04-01T15:12:48Z
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TIME SERIES ANALYSIS USING A UNIQUE MODEL OF TRANSFORMATION
Klepac, Goran
REFII1 model is an authorial mathematical model for time series data mining. The main purpose of that model is to automate time series analysis, through a unique transformation model of time series. An advantage of this approach of time series analysis is the linkage of different methods for time series analysis, linking traditional data mining tools in time series, and constructing new algorithms for analyzing time series. It is worth mentioning that REFII model is not a closed system, which means that we have a finite set of methods. At first, this is a model for transformation of values of time series, which prepares data used by different sets of methods based on the same model of transformation in a domain of problem space. REFII model gives a new approach in time series analysis based on a unique model of transformation, which is a base for all kind of time series analysis. The advantage of REFII model is its possible application in many different areas such as finance, medicine, voice recognition, face recognition and text mining.
Faculty of Organization and Informatics, University of Zagreb
2007-12-16 11:18:08
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Journal of Information and Organizational Sciences; Vol. 31 No. 2 (2007)
eng
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oai:jios.foi.hr:article/45
2008-03-21T11:23:40Z
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A METHOD FOR IMPROVEMENT OF OBJECTIVITY OF E-SERVICE QUALITY EVALUATION
Mekovec, Renata
Bubaš, Goran
Vrček, Neven
Measurement and improvement of e-service quality is important for sustaining competitive advantage of an e-commerce web site. A number of e-service quality measures have recently been developed that predominantly rely on the subjective evaluation of diverse quality attributes. To increase the objectivity of e-service quality measurement a recently developed measure of e-service quality has been adapted in a way that replaces its Likert type scales for evaluation of specific attributes with check-lists that include specific observable elements for appraisal and a scoring procedure. The consistency of scoring with this adaptation of an e-service quality measure was investigated in comparison to the use of the standard measure with Likert type scales and by the use of untrained and trained evaluators. The results of the empirical evaluation indicate a greater inter-rater consistency when the adapted/objective measure is used for evaluation of the efficiency dimension of e-service quality.
Faculty of Organization and Informatics, University of Zagreb
2007-12-16 11:18:08
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Journal of Information and Organizational Sciences; Vol. 31 No. 2 (2007)
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oai:jios.foi.hr:article/46
2008-03-21T11:36:19Z
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ICT IN DEVELOPING COUNTRIES: CONDITION AND IMPROVEMENT BY QMS - SERBIAN CASE STUDY
Stefanović, Miladin
Matijević, Milan
Devedžić, Goran
This paper evaluates the level of Information and Communication Technology (ICT) in the Serbian metal processing sector. This research uses data from the entire metal processing sector in Serbia (Sample: 20 large companies, 27 medium companies, and 247 small companies, overall with 33,057 workers). Data from the Serbian metal processing sector were compared to the relevant data from EU. In this paper, we present problems and steps for improvement of ICT in the Serbian metal processing industry. We will also present development of quality infrastructure necessary for support and improvement of Serbian ICT industry and improvement of ITC sectors in Serbian metal processing industry.
Faculty of Organization and Informatics, University of Zagreb
2007-12-16 11:18:08
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//jios.foi.hr/index.php/jios/article/view/46
Journal of Information and Organizational Sciences; Vol. 31 No. 2 (2007)
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oai:jios.foi.hr:article/47
2008-03-21T11:41:32Z
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dc
COLOR MANAGEMENT IMPLEMENTATION IN DIGITAL PHOTOGRAPHY
Strgar Kurečić, Maja
Agić, Darko
Mandić, Lidija
Digital cameras on the market today have a great potential to become the powerful tool for capturing images for use in all demanding fields (such as artwork digitalization), so many professionals started using digital technology. But, it is often the case, that it is necessary to spend a lot of time for visual editing and making color corrections in various software applications. In this research, some ICC color management techniques were used and tested to investigate the quicker ways to achieve digital images with improved color reproduction accuracy, without visual editing. A testing procedure for characterizing digital camera is described. This procedure is target-based, thus providing objective measurement of quality. The special color reference target for digital camera characterization was developed, applied and tested. The results show that using proposed methodology, the workflow efficiency and color accuracy can be improved.
Faculty of Organization and Informatics, University of Zagreb
2007-12-16 11:18:08
application/pdf
//jios.foi.hr/index.php/jios/article/view/47
Journal of Information and Organizational Sciences; Vol. 31 No. 2 (2007)
eng
Copyright (c)
oai:jios.foi.hr:article/48
2008-03-21T11:46:12Z
jios:ART
nmb a2200000Iu 4500
1846-9418
1846-3312
dc
FEASIBILITY OF INVESTMENT IN BUSINESS ANALYTICS
Varga, Mladen
Vuković, Miljenko
Trends in data processing for decision support show that business users need business analytics, i.e. analytical applications which incorporate a variety of business oriented data analysis techniques and task-specific knowledge. The paper discusses the feasibility of investment in two models of implementing business analytics: custom development and packed analytical applications. The consequences of both models are shown on two models of business analytics implementation in Croatia.
Faculty of Organization and Informatics, University of Zagreb
2007-12-16 11:18:08
application/pdf
//jios.foi.hr/index.php/jios/article/view/48
Journal of Information and Organizational Sciences; Vol. 31 No. 2 (2007)
eng
Copyright (c)
oai:jios.foi.hr:article/49
2008-07-17T09:30:48Z
jios:ART
nmb a2200000Iu 4500
"080603 2008 eng "
1846-9418
1846-3312
dc
Evaluation Framework for Quality Management Software
Hrgarek, Nadica
Identifying and specifying user requirements is an integral part of information systems design and is critical for the project success. More than 50% of the reasons for the project failure presented in the CHAOS report [36] and study of a US Air Force project by Sheldon et al. [33] are related to requirements. The goal of this paper is to assess the relevant user and software requirements which are the basis for an electronic quality management system selection in medical device companies. This paper describes the structured evaluation and selection process of different quality management software tools that shall support business processes. The purpose of this paper is to help the small to medium size medical device companies to choose the right quality management software which meets the company's business needs.
Faculty of Organization and Informatics, University of Zagreb
2008-06-21 09:30:30
application/pdf
//jios.foi.hr/index.php/jios/article/view/49
Journal of Information and Organizational Sciences; Vol. 32 No. 1 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/53
2008-07-17T09:30:30Z
jios:ART
nmb a2200000Iu 4500
"080704 2008 eng "
1846-9418
1846-3312
dc
Benchmarking User Perceived Impact for Web Portal Success Evaluation
Delic, Daniel
Freie Universität Berlin
Lenz, Hans-J.
Freie Universität Berlin
We describe an approach for success evaluation of Web portals by benchmarking user perceived impact with Multiple-Criteria Decision Analysis (MCDA). For impact measurement a questionnaire is used. The method is applied in a case study of four eGovernment portals and results are discussed.
Faculty of Organization and Informatics, University of Zagreb
2008-06-21 09:30:30
application/pdf
//jios.foi.hr/index.php/jios/article/view/53
Journal of Information and Organizational Sciences; Vol. 32 No. 1 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/54
2008-07-31T12:40:10Z
jios:ART
nmb a2200000Iu 4500
"080704 2008 eng "
1846-9418
1846-3312
dc
An Uncontrolled Item of Enterprise ICT Innovation: the High Level Digital Divide
Pighin, Maurizio
Dipartimento di Matematica e Informatica, Università degli Studi di Udine
Marzona, Anna
Dipartimento di Scienze Stat
The globalization phenomena strongly stresses western countries’ economies. Especially in industrial districts, companies are reacting with continuous innovations in product and process, based mainly on the introduction of ICT. This continuous organizational change process forces employees to keep in touch with the working environment in an endless learning process. Therefore, the introduction of new ICT seems to bring a cultural development for individuals. Is this always true? Our conviction is that the strong ICT impact generates a new form of digital-divide, a “High-Level Digital Divide” (HLDD): an increasing cultural distance between people able to follow the enterprise ICT evolution and complexity, and people with a lower cultural growth ability. An uncontrolled growth of HLDD may limit the evolution capacity of the enterprise and drop out people from labor market.
Faculty of Organization and Informatics, University of Zagreb
2008-06-21 09:30:30
application/pdf
//jios.foi.hr/index.php/jios/article/view/54
Journal of Information and Organizational Sciences; Vol. 32 No. 1 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/55
2008-07-17T09:31:30Z
jios:ART
nmb a2200000Iu 4500
"080616 2008 eng "
1846-9418
1846-3312
dc
An Investigation of Marketing via Mobile Devices - Attitudes of Croatian Marketing Experts
Dobrinić, Damir
Dvorski, Stjepan
Bosilj, Neven
Marketing activities supported by mobile devices offer great opportunities for direct communication with consumers without the barriers of time, place, location and other. This article explores opinions and expectations Croatian marketing experts have towards use of m-advertising and other available advertising media, where we take the perspective of marketing experts to predict the future of m-marketing and m-advertising in Croatia. The paper also discusses the relevance of m-advertising and investigates the future of m-marketing and m-advertising in Croatia.
This research focuses mainly on understanding the potential and effectiveness of the use of mobile phones as a promotional medium, but we also try to recognize the level of concern of marketing experts associated with spam, relating to privacy intrusion and ethics components in m-advertising. Privacy and ethics concerns could create resistance to the adoption of m-advertising.
Media selection becomes the most critical factor for the success of a promotional and advertising marketing campaign. Croatian experts still consider TV or newspapers the best way to reach a large number of potential consumers, but what are their expectations towards mobile advertising? To answer this question, we built a model that links attitudes towards advertising via classical media to the intention to use m-advertising.
Faculty of Organization and Informatics, University of Zagreb
2008-06-21 09:30:30
application/pdf
//jios.foi.hr/index.php/jios/article/view/55
Journal of Information and Organizational Sciences; Vol. 32 No. 1 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/59
2008-07-17T09:31:46Z
jios:ART
nmb a2200000Iu 4500
"080616 2008 eng "
1846-9418
1846-3312
dc
Shot Boundary Detection in Soccer Video using Twin-comparison Algorithm and Dominant Color Region
Šarić, Matko
Dujmić, Hrvoje
Baričević, Domagoj
The first step in generic video processing is temporal segmentation, i.e. shot boundary detection. Camera shot transitions can be either abrupt (e.g. cuts) or gradual (e.g. fades, dissolves, wipes). Sports video is one of the most challenging domains for robust shot boundary detection. We proposed a shot boundary detection algorithm for soccer video based on the twin-comparison method and the absolute difference between frames in their ratios of dominant colored pixels to total number of pixels. With this approach the detection of gradual transitions is improved by decreasing the number of false positives caused by some camera operations. We also compared performances of our algorithm and the standard twin-comparison method.
Faculty of Organization and Informatics, University of Zagreb
2008-06-21 09:30:30
application/pdf
//jios.foi.hr/index.php/jios/article/view/59
Journal of Information and Organizational Sciences; Vol. 32 No. 1 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/63
2008-12-09T14:27:12Z
jios:ART
nmb a2200000Iu 4500
"081205 2008 eng "
1846-9418
1846-3312
dc
Factors and Predictors of Online Security and Privacy Behavior
Bubaš, Goran
Faculty of Organization and Informatics http://www.foi.hr/nastavnici/bubas.goran/index.html
Orehovački, Tihomir
Faculty of Organization and Informatics http://www.foi.hr/nastavnici/orehovacki.tihomir/index.html
Konecki, Mario
Faculty of Organization and Informatics http://www.foi.hr/nastavnici/konecki.mario/index.html
Assumptions and habits regarding computer and Internet use are among the major factors which influence online privacy and security of Internet users. In our study a survey was performed on 312 subjects (college students who are Internet users with IT skills) that investigated how assumptions and habits of Internet users are related to their online security and privacy. The following four factors of online security and privacy related behaviors were revealed in factor analysis: F1 – conscientiousness in the maintenance of the operating system, upgrading of the Internet browser and use of antivirus and antispyware programs; F2 –engagement in risky and careless online activities with lack of concern for personal online privacy; F3 – disbelief that privacy violations and security threats represent possible problems; F4 – lack of fear regarding potential privacy and security threats with no need for change in personal online behavior. Statistically significant correlations were found between some of the discovered factors on the one side, and criteria variables occurrence of malicious code (C1) and data loss on the home computer (C2) on the other. In addition, a regression analysis was performed which revealed that the potentially risky online behaviors of Internet users were associated with the two criteria variables. To properly interpret the results of correlation and regression analyses a conceptual model was developed of the potential causal relationships between the behavior of Internet users and their experiences with online security threats. An additional study was also performed which partly confirmed the conceptual model, as well as the factors of online security and privacy related behaviors.
Faculty of Organization and Informatics, University of Zagreb
2008-12-09 14:27:12
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Journal of Information and Organizational Sciences; Vol. 32 No. 2 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/68
2010-01-22T16:14:18Z
jios:ART
nmb a2200000Iu 4500
"081209 2008 eng "
1846-9418
1846-3312
dc
Conceptual Modelling of Complex Production Systems
Perši, Nenad
Complex system dynamics, structure and behaviour performances call for a wide range of methods, algorithms and tools to reach a model capable of finding optimal performing parameters. In the modelling process, it is up to the analyst to select the appropriate combination of methods, algorithms and tools to express significant system performances. Such a methodology for designing complex systems should be based upon conceptual modelling to perform a sensitive analysis of different system levels and views, allowing system representations for developing computer models.Complex systems, such as business systems with a continuous-discrete production process, require a well organised supply chain highly reactive to production assortment changes. Aligning two different production components distinctive in their behaviour is especially delicate at the production parameters transition point. Such system performances require distinctive designing methods that can follow the double nature of the production process behaviour in accordance with their entities dynamics caused by assortment changes. Consequently, such systems need different conceptual presentations for their purpose to be realized from different views and aspects.
Faculty of Organization and Informatics, University of Zagreb
2008-12-09 14:27:12
application/binary
//jios.foi.hr/index.php/jios/article/view/68
Journal of Information and Organizational Sciences; Vol. 32 No. 2 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/71
2008-07-17T09:32:03Z
jios:ART
nmb a2200000Iu 4500
"080616 2008 eng "
1846-9418
1846-3312
dc
Modeling Organizational Design - Applying A Formalism Model From Theoretical Physics
Fabac, Robert
Stepanić, Josip
University of Zagreb, Faculty of Mechanical Engineering & Naval Architecture Zagreb
Modern organizations are exposed to diverse external environment influences. Currently accepted concepts of organizational design take into account structure, its interaction with strategy, processes, people, etc. Organization design and planning aims to align this key organizational design variables. At the higher conceptual level, however, completely satisfactory formulation for this alignment doesn’t exist. We develop an approach originating from the application of concepts of theoretical physics to social systems. Under this approach, the allocation of organizational resources is analyzed in terms of social entropy, social free energy and social temperature. This allows us to formalize the dynamic relationship between organizational design variables. In this paper we relate this model to Galbraith's Star Model and we also suggest improvements in the procedure of the complex analytical method in organizational design.
Faculty of Organization and Informatics, University of Zagreb
2008-06-21 09:30:30
application/pdf
//jios.foi.hr/index.php/jios/article/view/71
Journal of Information and Organizational Sciences; Vol. 32 No. 1 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/72
2012-04-19T16:25:19Z
jios:ART
nmb a2200000Iu 4500
"081120 2008 eng "
1846-9418
1846-3312
dc
Method for Estimating the Complexity of Designing Business Information Systems
Poščić, Patrizia
Department of Informatics University of Rijeka
Pavlić, Mile
Department of Informatics University of Rijeka
Vrček, Neven
Faculty of Organization and Informatics Varaždin
The most used method for determining the complexity of information systems is the function point method. This paper illustrates the new method, Data on Document (DOD) for estimating the complexity of designing business information systems. Similar methods are shown in brief. The objective is to explain the reasons for using the newly defined DOD method instead of the function point method. The new method is easier to use while the usage of function point method takes a lot of time and effort, and is more complex. The DOD method is compared to the function point method. A high degree of correlation was determined in observed information systems. The DOD method helps in early stages of the development of information systems, when it is not possible to apply the function point method.
Faculty of Organization and Informatics, University of Zagreb
2008-12-09 14:27:12
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//jios.foi.hr/index.php/jios/article/view/72
Journal of Information and Organizational Sciences; Vol. 32 No. 2 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/73
2008-07-17T09:46:14Z
jios:EDIT
nmb a2200000Iu 4500
1846-9418
1846-3312
dc
From the Editor
Vrček, Neven
University of Zagreb, Faculty of Organization and Informatics, Varazdin
The Journal of Information and Organizational Sciences – JIOS – is an interdisciplinary scientific journal with focus on application of information sciences and advances in organizational sciences, as well as on theoretical contemplations in the fields that impact information sciences, computer sciences and organizational sciences. JIOS is published twice a year. This issue comprises submitted papers along with those chosen among papers presented at the IIS 2007 Conference (recently renamed CECIIS) organized by the Faculty of Organization and Informatics.
JIOS has already undergone several changes of its name and layout. With this issue we introduce a new visual identity of the Journal as well as modified instructions to authors, to make it more aligned with contemporary standards in scientific journal publication. Further, the Journal has changed its web address and is managed by Open Journal System, where all communication from submitting the paper to reviewing and publishing is conducted on-line.
In this issue of JIOS a selection of six original scientific papers has been included covering the following topics: organizational design, digital divide in enterprises, management software and web portals evaluation, m-marketing and m-advertising, as well as the introduction of a shot boundary detection algorithm for soccer video. We hope you will find the papers interesting and challenging for your own research.
We are looking forward to new papers to be submitted in the future and comments of papers already published.
Faculty of Organization and Informatics, University of Zagreb
2008-06-21 09:30:30
application/pdf
//jios.foi.hr/index.php/jios/article/view/73
Journal of Information and Organizational Sciences; Vol. 32 No. 1 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/74
2008-12-09T14:27:12Z
jios:ART
nmb a2200000Iu 4500
"080818 2008 eng "
1846-9418
1846-3312
dc
A Heuristic Approach to Possibilistic Clustering for Fuzzy Data
Viattchenin, Dmitri A.
Senior Researcher
The paper deals with the problem of the fuzzy data clustering. In other words, objects attributes can be represented by fuzzy numbers or fuzzy intervals. A direct algorithm of possibilistic clustering is the basis of an approach to the fuzzy data clustering. The paper provides the basic ideas of the method of clustering and a plan of the direct possibilistic clustering algorithm. Definitions of fuzzy intervals and fuzzy numbers are presented and distances for fuzzy numbers are considered. A concept of a vector of fuzzy numbers is introduced and the fuzzy data preprocessing methodology for constructing of a fuzzy tolerance matrix is described. A numerical example is given and results of application of the direct possibilistic clustering algorithm to a set of vectors of triangular fuzzy numbers are considered in the example. Some preliminary conclusions are stated.
Faculty of Organization and Informatics, University of Zagreb
2008-12-09 14:27:12
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//jios.foi.hr/index.php/jios/article/view/74
Journal of Information and Organizational Sciences; Vol. 32 No. 2 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/79
2008-12-09T14:30:03Z
jios:ART
nmb a2200000Iu 4500
"081110 2008 eng "
1846-9418
1846-3312
dc
Java Applications Development Based on Component and Metacomponent Approach
Radošević, Danijel
Faculty of Organization and Informatics
Konecki, Mario
Faculty of Organization and Informatics
Orehovački, Tihomir
Faculty of Organization and Informatics
Component based modeling offers new and improved approach to design, construction, implementation and evolution of software applications development. This kind of software applications development is usually represented by appropriate component model/diagram. UML, for example, offers component diagram for representation of this kind of model. On the other hand, metacomponents usage offers some new features which hardly could be achieved by using generic components. Firstly, implementation of program properties which are dispersed on different classes and other program units, i.e. aspects, is offered. This implies using automated process of assembling components and their interconnection for building applications, according to appropriate model offered in this paper, which also offers generic components usage. Benefits of this hybrid process are higher flexibility achieved by automated connection process, optimization through selective features inclusion and easier application maintenance and development. In this paper we offer an approach of application development based on hybrid component/metacomponent model. The component model is given by UML diagrams, while the metacomponent model is given by generator scripting model. We explain that hybrid approach on an example of Java Web application development.
Faculty of Organization and Informatics, University of Zagreb
2008-12-09 14:27:12
application/binary
//jios.foi.hr/index.php/jios/article/view/79
Journal of Information and Organizational Sciences; Vol. 32 No. 2 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/80
2008-12-09T14:27:12Z
jios:ART
nmb a2200000Iu 4500
"081129 2008 eng "
1846-9418
1846-3312
dc
Holistic approach to fraud management in health insurance
Furlan, Štefan
University of Ljubljana, Faculty of computer and information science
Bajec, Marko
University of Ljubljana, Faculty of computer and information science
Fraud present an immense problem for health insurance companies and the only way to fight fraud is by using specialized fraud management systems. The current research community focussed great efforts on different fraud detection techniques while neglecting other also important activities of fraud management. We propose a holistic approach that focuses on all 6 activities of fraud management, namely, (1) deterrence, (2) prevention, (3) detection, (4) investigation, (5) sanction and redress, and (6) monitoring. The main contribution of the paper are 15 key characteristics of a fraud management system, which enable construction of a fraud management system that provides effective and efficient support to all fraud management activities. We base our research on literature review, interviews with experts from different fields, and a case study. The case study provides additional confirmation to expert opinions, as it puts our holistic framework into practice.
Faculty of Organization and Informatics, University of Zagreb
2008-12-09 14:27:12
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Journal of Information and Organizational Sciences; Vol. 32 No. 2 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/81
2009-07-06T09:32:31Z
jios:ART
nmb a2200000Iu 4500
"090701 2009 eng "
1846-9418
1846-3312
dc
1957-2007: 50 Years of Higher Order Programming Languages
Lovrenčić, Alen
University of Zagreb, Faculty of Organization and Informatics, Varazdin
Konecki, Mario
University of Zagreb, Faculty of Organization and Informatics, Varaždin
Orehovački, Tihomir
University of Zagreb, Faculty of Organization and Informatics, Varaždin
Fifty years ago one of the greatest breakthroughs in computer programming and in the history of computers happened -- the appearance of FORTRAN, the first higher-order programming language. From that time until now hundreds of programming languages were invented, different programming paradigms were defined, all with the main goal to make computer programming easier and closer to as many people as possible. Many battles were fought among scientists as well as among developers around concepts of programming, programming languages and paradigms. It can be said that programming paradigms and programming languages were very often a trigger for many changes and improvements in computer science as well as in computer industry. Definitely, computer programming is one of the cornerstones of computer science.
Today there are many tools that give a help in the process of programming, but there is still a programming tasks that can be solved only manually. Therefore, programming is still one of the most creative parts of interaction with computers.
Programmers should chose programming language in accordance to task they have to solve, but very often, they chose it in accordance to their personal preferences, their beliefs and many other subjective reasons.
Nevertheless, the market of programming languages can be merciless to languages as history was merciless to some people, even whole nations. Programming languages and developers get born, live and die leaving more or less tracks and successors, and not always the best survives.
The history of programming languages is closely connected to the history of computers and computer science itself. Every single thing from one of them has its reflexions onto the other. This paper gives a short overview of last fifty years of computer programming and computer programming languages, but also gives many ideas that influenced other aspects of computer science. Particularly, programming paradigms are described, their intentions and goals, as well as the most of the significant languages of all paradigms.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
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//jios.foi.hr/index.php/jios/article/view/81
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/84
2009-07-06T09:32:31Z
jios:ART
nmb a2200000Iu 4500
"081211 2008 eng "
1846-9418
1846-3312
dc
Theory of Microcrediting in Transitional Economies
Kadoić, Nikola
Faculty of Organization and Informatics
Kopić, Matija
Faculty of Organization and Informatics
In the early 1970s, Bangladeshi banker and economist Dr. Muhammad Yunus designed microcrediting – a socially sensitive and rightful system of fighting poverty and high unemployment rates. His Grameen Bank for the poorest of the poor in Bangladesh has so far lifted more than 3.2 million of individuals and their families out of poverty. After initial successes at home, microcredit was put into service for reducing unemployment and alleviating poverty in numerous countries throughout the world.
This paper explores specific problems that a typical transitional country (like Croatia), is likely to face, with unemployment – the source of a vast number of related problems in a transitional society – as the focal point. The authors have attempted to incorporate particularities of a transitional economy into the original microcrediting principles. As a solution to problems afflicting the domestic economy, the authors define a global microcrediting system framework on the macroeconomic level, assuming at the same time that microcrediting of socially vulnerable groups can resolve many problems of modern transitional societies. Arising from the authors' primary intention – to consider in depth the functionality of microcrediting in general transition conditions – a transitional microcrediting system has been defined in general terms, and a corresponding financial and mathematical model developed.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
image/pds/raspored_12_01_2009
//jios.foi.hr/index.php/jios/article/view/84
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/86
2008-12-10T07:57:32Z
jios:EDIT
nmb a2200000Iu 4500
"081209 2008 eng "
1846-9418
1846-3312
dc
From the Editor
Vrček, Neven
University of Zagreb, Faculty of Organization and Informatics, Varazdin
The Journal of Information and Organizational Sciences – JIOS – is an interdisciplinary scientific journal with a focus on the application of information sciences and advances in organizational sciences, as well as on theoretical contemplations in the fields that impact information sciences, computer sciences and organizational sciences. JIOS is published twice a year, and is managed by a team of professionals, all of whom are employed at the Faculty of Organization and Informatics, University of Zagreb.
The Journal’s name and layout have already undergone several changes. As you can see, we have transformed our visual identity, and the format of the published papers has been changed as well. However, it is not only the visual identity of the Journal that we have been working on, as we have also aimed to enhance its visibility, accessibility and referencing. As a result, we are proud to say that the number of databases the Journal is cited in has grown from one to seven, and we are putting a lot of our e. orts into broadening this number in future.
As you already know, the Journal’s web address has been changed to www.jios.foi.hr and it is currently being managed by the Open Journal System, in which the entire communication from submitting the paper to its reviewing and publishing is conducted on-line.
In this issue of JIOS a selection of five original scientific papers and one review paper has been included covering the following topics: modern production management, fuzzy data, software and information systems development, online privacy and security, and fraud management. We hope you will find the papers interesting and challenging for your own research.
Finally, we encourage you to submit your papers and also share with us your recommendations, comments or observations about papers already published. In that respect, we would very much appreciate your willingness to become a peer-reviewer for submitted papers, and thus contribute to the rising quality of JIOS.
Faculty of Organization and Informatics, University of Zagreb
2008-12-09 14:27:12
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Journal of Information and Organizational Sciences; Vol. 32 No. 2 (2008)
eng
Copyright (c)
oai:jios.foi.hr:article/87
2009-07-06T09:32:32Z
jios:ART
nmb a2200000Iu 4500
"090530 2009 eng "
1846-9418
1846-3312
dc
Web 2.1 : Toward a large and qualitative participation on the Web
Sbihi, Boubker
Faculté des Sciences de Tétouan
El jazouli, Siham
Faculté des Sciences de Tétouan
El kadiri, Kamal Eddine
Faculté des Sciences de Tétouan
This article presents the results of research done on Web 2.0 within the School of Information Sciences ESI. It aims to study the behavior of different academic actors who deal with information, among whom we cite teachers, students of masters and students of information sciences in Morocco, face to Web 2.0’s services.
Firstly, it aims to evaluate the use and production of information in the context of Web 2.0. Then, it attempts to assess those rates, to identify and analyze the causes of eventual problems and obstacles that academic actors face. In fact, we intend to understand why information actors in the academic world use often Web 2.0’s services but do rarely produce qualitative content.
To achieve the objectives set, we used the on-site survey method, which was based on an electronic questionnaire administered directly to our people via the Internet. We chose the electronic version of questionnaire in order to make an optimal use in terms of new technologies, to gain time and to reduce cost. Then, in order to deepen the understanding of the data collected, we complete the data collected by the questionnaire by an ongoing discussions with actors.
Finally, to overcome the problems already identified, we intend to propose the elements of a new version of the Web called Web 2.1 offering new concepts in order to encourage users to produce information of quality and make the Web more open to a larger community.
This version maintains the current contents of Web 2.0 and adds more value to it. Indeed, the content will be monitored, evaluated and validated before being published.
In order to target valuable information, the new version of Web 2.1 proposes to categorize users into three groups: users who just use the contents, producers who use and produce content, and validators who validate the content in order to target information that is validated and of good quality. Once the information is published, it must be well organized, well stored and archived or removed to avoid over-information.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
image/pds/raspored_12_01_2009
//jios.foi.hr/index.php/jios/article/view/87
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/90
2009-07-06T09:32:31Z
jios:ART
nmb a2200000Iu 4500
"090701 2009 eng "
1846-9418
1846-3312
dc
Web-based Systems Development: The Influence of Disciplinary Backgrounds on Design Practices
Lang, Michael
National University of Ireland - Galway
Web development teams are multidisciplinary, bringing together designers from a variety of backgrounds. A Web designer’s professional training and education can shape his problem-solving orientation and world view by indoctrinating certain values and conditioning him to think and behave in certain ways. This paper presents an analysis of data gathered across 14 interviews, wherein four distinct orientations were identified: (1) Web development as the design of a functional software application (emphasis on back-end functionality); (2) as the design of an interactive tool (emphasis on ergonomics); (3) as the design of a communicational dialogue (emphasis on audience engagement); and (4) as an extension of branded graphic design (emphasis on visual presentation).
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
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//jios.foi.hr/index.php/jios/article/view/90
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/91
2009-07-06T09:32:32Z
jios:ART
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"090321 2009 eng "
1846-9418
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An Algorithm for Detecting the Principal Allotment among Fuzzy Clusters and Its Application as a Technique of Reduction of Analyzed Features Space Dimensionality
Viattchenin, Dmitri A.
Senior Researcher
This paper describes a modification of a possibilistic clustering method based on the concept of allotment among fuzzy clusters. Basic ideas of the method are considered and the concept of a principal allotment among fuzzy clusters is introduced. The paper provides the description of the plan of the algorithm for detection principal allotment. An analysis of experimental results of the proposed algorithm’s application to the Tamura’s portrait data in comparison with the basic version of the algorithm and with the NERFCM-algorithm is carried out. A methodology of the algorithm’s application to the dimensionality reduction problem is outlined and the application of the methodology is illustrated on the example of Anderson’s Iris data in comparison with the result of principal component analysis. Preliminary conclusions are formulated also.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
image/pds/raspored_12_01_2009
//jios.foi.hr/index.php/jios/article/view/91
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/94
2009-07-06T10:08:43Z
jios:ART
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"090530 2009 eng "
1846-9418
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Interactions Validation Methods for Training Resources Control Engine Development
Bernaś, Marcin Waldemar
Piecha, Jan
The training courseware complexity proper selection is one of the most difficult factors looking from an intelligent application engine development. The application needs individual settings, the most relevant for the application structure matching to the users' individual expectations. What is more, the obtained structure allows controlling dynamically the application within a time it is used. The application units description with their controlling functions allow joining the database components into individual composition of the courseware. The paper in-troduces several aspects of distance learning resources development, fulfilling the demanding assumptions of the interactive training units.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
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//jios.foi.hr/index.php/jios/article/view/94
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/97
2010-01-13T16:29:24Z
jios:ART
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"090701 2009 eng "
1846-9418
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Integrating Six Sigma into a Quality Management System in the Medical Device Industry
Hrgarek, Nadica
Bowers, Kerri-Anne
Six Sigma is a valuable management strategy to improve business processes, reduce development and production costs, increase profit margin and improve customer satisfaction. The purpose of this paper is to describe how applicable Six Sigma concepts may complement and support formal quality management systems (QMS) in the medical device industry.
A significant number of issues, which increase the development costs and times, is often found during different phases of a medical device life cycle. Some defects with high patient safety risk may result in dangerous and very costly product recalls.
The basic idea of this paper is to explore the possibilities of integrating Six Sigma techniques with an existing QMS throughout the entire life cycle of a medical device. This paper addresses how Six Sigma techniques, when appropriately integrated into the QMS at medical device companies, can eliminate defects earlier in the medical device life cycle, identify major opportunities for cost savings, focus on customer needs and expectations, and improve the overall business processes.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
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//jios.foi.hr/index.php/jios/article/view/97
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/98
2009-07-06T09:32:32Z
jios:ART
nmb a2200000Iu 4500
"090524 2009 eng "
1846-9418
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Double Separation Method for Translation of the Infrared Information into a Visible Area
Žiljak, Ivana
Faculty of Graphic Arts, University of Zagreb
Pap, Klaudio
Faculty of Graphic Arts, University of Zagreb
Žiljak, Vilko
Faculty of Graphic Arts, University of Zagreb
Information visualization refers to the wavelength area ranging from 400 to 700 nm. Areas in lower wavelengths ranging from 100 to 400 nm are translated into the visual area with the goal to protect information visible only by applying instruments adapted for the ultraviolet area. Our recent research work refers to the infrared wavelength areas above the visible specter up to 1000 nm. The scientific contribution of this paper is in setting the double separation method for printing with CMYK printing inks with the goal to detect graphic information in the infrared area only. An algorithm has been created for making visual basics in the overall visible specter containing material that responds in the infrared section. This allows planning of areas in all coloring types for one and the same document that contains a secure piece of information. The system is based on double transition transformation of the visible RGB1 information recognition into CMYK2 in the same document. Secure information is recognized with the help of instruments in the set wavelength range. Most of the experiments have been carried out by analyzing the same set of RGB records. Each sample in the set was a test unit coming from another source containing different IR3 components. Thus an innovative method of color mixing has been set where colors appear respectively in daylight and separately according to IR light programming. New IR cryptography is proposed as shown in the experimental work.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
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//jios.foi.hr/index.php/jios/article/view/98
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/100
2009-07-06T09:48:50Z
jios:ART
nmb a2200000Iu 4500
"090407 2009 eng "
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An Efficient Algorithm for Congestion Control in Highly Loaded DiffServ/MPLS Networks
Krile, Srecko
Kresic, Dario
The optimal QoS path provisioning of coexisted and aggregated traffic in networks is still demanding problem. All traffic flows in a domain are distributed among LSPs (Label Switching Path) related to N service classes, but the congestion problem of concurrent flows can appear. As we know the IGP (Interior Getaway Protocol) uses simple on-line routing algorithms (e.g. OSPFS, IS-IS) based on shortest path methodology. In QoS end-to-end provisioning where some links may be reserved for certain traffic classes (for particular set of users) it becomes insufficient technique. On other hand, constraint based explicit routing (CR) based on IGP metric ensures traffic engineering (TE) capabilities. The algorithm proposed in this paper may find a longer but lightly loaded path, better than the heavily loaded shortest path. LSP can be pre-computed much earlier, possibly during SLA (Service Level Agreement) negotiation process. As we need firm correlation with bandwidth management and traffic engineering (TE) the initial (pro-active) routing can be pre-computed in the context of all priority traffic flows (former contracted SLAs) traversing the network simultaneously. It could be a very good solution for congestion avoidance and for better load-balancing purpose where links are running close to capacity. Also, such technique could be useful in inter-domain end-to-end provisioning, where bandwidth reservation has to be negotiated with neighbor ASes (Autonomous System). To be acceptable for real applications such complicated routing algorithm can be significantly improved. Algorithm was tested on the network of M core routers on the path (between edge routers) and results are given for N=3 service classes. Further improvements through heuristic approach are made and results are discussed.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
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//jios.foi.hr/index.php/jios/article/view/100
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
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oai:jios.foi.hr:article/101
2009-07-06T09:32:31Z
jios:ART
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"090306 2009 eng "
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The Partial Mapping of the Web Graph
Machova, Kristina
Technical University Kosice http://people.tuke.sk/kristina.machova/
The paper presents an approach to partial mapping of a web sub-graph. This sub-graph contains the nearest surroundings of an actual web page. Our work deals with acquiring relevant Hyperlinks of a base web site, generation of adjacency matrix, the nearest distance matrix and matrix of converted distances of Hyperlinks, detection of compactness of web representation, and visualization of its graphical representation. The paper introduces an LWP algorithm – a technique for Hyperlink filtration. This work attempts to help users with the orientation within the web graph.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
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//jios.foi.hr/index.php/jios/article/view/101
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
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oai:jios.foi.hr:article/107
2009-07-16T09:39:08Z
jios:ART
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"090701 2009 eng "
1846-9418
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Creating adaptive environment for e-learning courses
Radenkovic, Bozidar
Phd http://www.myelab.net
Despotovic, Marijana
Phd http://www.myelab.net
Bogdanovic, Zorica
Msc http://www.myelab.net
Barac, Dusan
BSc http://www.myelab.net
In this paper we provide an approach to creating adaptive environment for e-learning courses. In the context of e-education, successful adaptation has to be performed upon learners’ characteristics. Currently, modeling and discovering users’ needs, goals, knowledge preferences and motivations is one of the most challenging tasks in e-learning systems that deal with large volumes of information. Primary goal of the research is to perform personalizing of distance education system, according to students’ learning styles. Main steps and requirements in applying business intelligence techniques in process of personalization are identified. In addition, we propose generic model and architecture of an adaptive e-learning system by describing the structure of an adaptive course and exemplify correlations among e-learning course content and different learning styles. Moreover, research that dealt with application of data mining technique in a real e-learning system was carried out. We performed adaptation of our e-learning courses using the results from the research.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
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//jios.foi.hr/index.php/jios/article/view/107
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/108
2009-07-06T09:32:31Z
jios:ART
nmb a2200000Iu 4500
"090301 2009 eng "
1846-9418
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Application of Benford's Law in Payment Systems Auditing
Žgela, Mario
Krakar, Zdravko
Information systems auditing activities are mandatory in today business environments. There are numerous useful methods that can be conducted in such audits. One of contemporary methods is application of so-called Benford's Law. In this paper we examine ways of application of this law in investigation of certain number set with aim to make a conclusion if number set conforms to Benford's Law. As an examination target we used foreign payment system messages which are issued between foreign and domestic business entities i.e. commercial and central banks. We chose sample of 1.745.311 transactions and conducted examination for first, second and first two digits. We examine certain data subsets, created according to certain payment types, and investigate how Benford’s Law tests can be used in auditing. We also compare practical usefulness and note differences between various conformity tests in auditing environment. Results we achieved prove adequate potential of this law in audit practice.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
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//jios.foi.hr/index.php/jios/article/view/108
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/109
2009-07-06T09:56:15Z
jios:ART
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"090701 2009 eng "
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Linguistic competence in tertiary-level instruction in English and its relevance for student mobility
Kovacic, Andreja
Kirinic, Valentina
Divjak, Blazenka
Student and teacher mobility are important aspects of education within the Bologna Process. Overcoming the language barrier is a precondition for following and providing instruction in a foreign language. A survey was conducted among first-year undergraduate students to determine their readiness for instruction in English. The survey results show the respondent profile, their assessment of instruction within an English language course, using other ways of acquiring knowledge and self-assessment of their command of English. The students' self-assessment of motivation for learning English and its relevance for their profession are presented along with students' interest in other courses offered in English. It turns out that, regardless of a satisfactory level of self-assesed competence in English and motivation for learning English, students are not willing to enroll in the offered study courses in English. This may indicate that all the precoditions for mobility have not been fulfilled. The survey results are compared with the corresponding results of another, more comprehensive, survey among graduate students at the Faculty of Organization and Informatics conducted at the whole University of Zagreb. Althouh the results obtained in the two surveys are not identical, they roughly correspond.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
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//jios.foi.hr/index.php/jios/article/view/109
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/112
2009-12-15T12:17:17Z
jios:ART
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The Role of Knowledge Management in Mobile Marketing
Bosilj, Neven
T-mobile Croatia, Grada Vukovara 23, 10000 Zagreb, Croatia
Jurinjak, Ivan
Mobile terminal devices and mobile networks enable mass customization for individual customers, and pursuant to this mobile marketing represent the last stage of segmentation leading up to the individually customized marketing, i.e. „one on one marketing“. Mobile marketing refers to using an interactive wireless medium with purpose of providing customers with personal information, having time and location dimension, promoting goods, services and ideas, thus generating value for all stakeholders. On one hand, mobile medium has completely transformed present day notion of marketing campaigns and opened up a range of new opportunities for advertisers, and on the other hand it put new challenges before companies whose CRM and KM systems are not well adapted to new requirements of mobile marketing. This article attempts to answer the question on how to successfully run mobile marketing campaigns, while using tools and knowledge provided by Knowledge Management and Customer Relationship Management.
Faculty of Organization and Informatics, University of Zagreb
2009-12-15 12:17:17
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//jios.foi.hr/index.php/jios/article/view/112
Journal of Information and Organizational Sciences; Vol. 33 No. 2 (2009)
eng
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oai:jios.foi.hr:article/114
2009-12-15T12:17:17Z
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"091215 2009 eng "
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Suitability of Modern Software Development Methodologies for Model Driven Development
Picek, Ruben
As an answer to today’s growing challenges in software industry, wide spectrum of new approaches of software development has occurred. One prominent direction is currently most promising software development paradigm called Model Driven Development (MDD). Despite a lot of skepticism and problems, MDD paradigm is being used and improved to accomplish many inherent potential benefits. In the methodological approach of software development it is necessary to use some kind of development process. Modern methodologies can be classified into two main categories: formal or heavyweight and agile or lightweight. But when it is a question about MDD and development process for MDD, currently known methodologies are very poor or better said they don't have any explanation of MDD process. As the result of research, in this paper, author examines the possibilities of using existing modern software methodologies in context of MDD paradigm.
Faculty of Organization and Informatics, University of Zagreb
2009-12-15 12:17:17
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//jios.foi.hr/index.php/jios/article/view/114
Journal of Information and Organizational Sciences; Vol. 33 No. 2 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/117
2010-06-30T15:40:33Z
jios:ART
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"100630 2010 eng "
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Model-Driven Analysis towards Interoperability of Assessments in LMS
Bizonova, Zuzana
Pilatova, Katarina
In this article we are focusing on interoperability of two aspects of LMS systems - test question types and assessments as such. The proposed strategy is based on MDA, especially on the Platform Independent Models (PIM). On the higher level of abstraction (PIM) it is possible to find commonalities and differences of architectures of various systems and these are the basis for the common generalized model of the assessments. In the three steps methodology we are adding specificities of PIM models of candidate systems with various architecture – Moodle, Olat and Claroline. The correctness of the final common model (General PIM) is proved in the implemented system for exchange of tests between the existing systems.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
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//jios.foi.hr/index.php/jios/article/view/117
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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oai:jios.foi.hr:article/118
2009-12-15T12:17:17Z
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"091215 2009 eng "
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PNMBG: Point Neighborhood Merging with Border Grids
Wan, Renxia
College of Information Science and Technology, Donghua University
Chen, Jingchao
College of Information Science and Technology, Donghua University
Wang, Lixin
College of Information Science and Technology, Donghua University
Su, Xiaoke
College of Information Science and Technology, Donghua University
The special clustering algorithm is attractive for the task of grouping arbitrary shaped database into several proper classes. Up to now, a wide variety of clustering algorithms designed for this task have been proposed, the majority of these algorithms is density-based. But the effectivity and efficiency still is the great challenges for these algorithms as far as the clustering quality of such task is concerned. In this paper, we propose an arbitrary shaped clustering method with border grids (PNMBG), PNMBG is a crisp partition method. It groups objects to point neighborhoods firstly, and then iteratively merges these point neighborhoods into clusters via grids, only bordering grids are considered during the merging stage. Experiments show that PNMBG has a good efficiency especially on the database with high dimension. In general, PNMBG outperforms DBSCAN in the term of efficiency and has an almost same effectivity with the later.
Faculty of Organization and Informatics, University of Zagreb
2009-12-15 12:17:17
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//jios.foi.hr/index.php/jios/article/view/118
Journal of Information and Organizational Sciences; Vol. 33 No. 2 (2009)
eng
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oai:jios.foi.hr:article/119
2009-07-06T09:32:30Z
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From the Editor
Vrcek, Neven
University of Zagreb, Faculty of Organization and Informatics, Varazdin
Dear readers,
I am happy to present you a new issue of the Journal of Information and Organizational Sciences, volume 33, number 1.
JIOS is being increasingly seen as a relevant journal in the field of information sciences and applied information and communication technology. Speaking in favour of this statement is the fact that JIOS has been included into several new databases – DOAJ (Directory of Open Access Journals), OAIster and Referativny Žurnal – which is information of interest to all our future authors. At present, we are cited in 7 diferent databases, which signifcantly enhances the visibility of the Journal.
In this issue a selection of 9 original scientific papers, 3 preliminary communication articles and 1 review paper has been included, all of which have undergone rigorous double-blind review. Some of the papers published here were already presented at the CECIIS 2008 conference. The papers in the current issue cover a broad area of topics, from programming and web related topics, through algorithm and method proposals, to economics and applied linguistics. We hope you will find the papers interesting and challenging for your own research.
We encourage you to submit your papers at www.jios.foi.hr, where you can also share with us your
recommendations, comments or critical remarks regarding the papers published in previous issues.
Your papers and feedback may prove invaluable in fulfilling our ambitions, which are very high indeed, as we have set out to enter some new databases. We would also appreciate your willingness to become a peer-reviewer for submitted papers, and thus give your contribution to the rising quality of JIOS.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
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//jios.foi.hr/index.php/jios/article/view/119
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
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oai:jios.foi.hr:article/120
2009-07-06T09:32:30Z
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Cover Pages
Vrcek, Neven
University of Zagreb, Faculty of Organization and Informatics, Varazdin
Here you can download journal cover pages.
Faculty of Organization and Informatics, University of Zagreb
2009-06-06 09:32:32
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//jios.foi.hr/index.php/jios/article/view/120
Journal of Information and Organizational Sciences; Vol. 33 No. 1 (2009)
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oai:jios.foi.hr:article/121
2009-12-15T12:21:53Z
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Creating an effective learning environment through an E-Learning Instructional Programme (ELIP)
Jakovljevic, Maria
University of the Witwatersrand http://www.wits.ac.za
Though numerous research reports have provided a body of information about benefits of e-learning there are barriers such as, asynchronous communication channels, lack of personalisation, which decrease the level of interaction between the learner and instructor [13].
The aim of this paper is to discuss and outline a framework on e-learning pedagogical and technology issues which provide a basis for the creation of an e-learning instructional programme (ELIP). The Phase I of this research start with the creation of a framework for an e-learning environment and derivation of the e-learning instructional programme (ELIP); Phase II is aimed to implement a popular audio playback device (iPod) and VoIP. In this phase 40 learners, one instructor and three tutors will be observed and their experiences will be evaluated through focus group interviews and documents analysis. This research was based on a qualitative research approach [78],[44].
Faculty of Organization and Informatics, University of Zagreb
2009-12-15 12:17:17
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//jios.foi.hr/index.php/jios/article/view/121
Journal of Information and Organizational Sciences; Vol. 33 No. 2 (2009)
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2009-12-15T12:17:17Z
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Impact of ICT on the structural and contextual organizational elements: Case of the Varaždin County
Brodar, Kristina
M.A.
Klačmer Čalopa, Marina
Ph.D.
Pihir, Igor
M.A.
The influence of certain factors on the organizational components has been in researchers' focus for years, together with their impact on the overall organizational efficiency. Traditional view commonly divided the factors on internal and external ones, which became improper in modern conditions. With contemporary division on structural and contextual factors, as a specific determinant we have to extract information and communication technology (ICT) which impacts elements of structural and contextual dimension in every organization. Therefore it is becoming generic factor which cannot be classified into one of these groups. In this research, we observed impact of ICT on organizational elements of public administrations offices on the case of the Varaždin County. Results show that this impact is present in various forms in all observed factors and thus makes ICT a generic organizational factor.
Faculty of Organization and Informatics, University of Zagreb
2009-12-15 12:17:17
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//jios.foi.hr/index.php/jios/article/view/122
Journal of Information and Organizational Sciences; Vol. 33 No. 2 (2009)
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oai:jios.foi.hr:article/123
2009-12-15T12:17:17Z
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Multi-Agent System for Decision Support in Enterprises
Lavbič, Dejan
University of Ljubljana, Faculty of Computer and Information Systems http://amor.fri.uni-lj.si/dejan
Rupnik, Rok
University of Ljubljana, Faculty of Computer and Information Systems
Business decisions must rely not only on organisation’s internal data but also on external data from competitors or relevant events. This information can be obtained from the Web but must be integrated with the data in an organisation’s Data Warehouse (DW). In this paper we discuss the agent-based integration approach using ontologies. To enable common understanding of a domain between people and application systems we introduce business rules approach towards ontology management. Because knowledge in organisation’s ontologies is acquired from business users without technical knowledge simple user interface based on ontology restrictions and predefined templates are used. After data from internal DW, Web and business rules are acquired; agent can deduce new knowledge and therefore facilitate decision making process. Tasks like information retrieval from competitors, creating and reviewing OLAP reports are autonomously performed by agents, while business users have control over their execution through knowledge base in ontology. The approach presented in the paper was verified on the case study from the domain of mobile communications with the emphasis on supply and demand of mobile phones and its accessories.
Faculty of Organization and Informatics, University of Zagreb
2009-12-15 12:17:17
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//jios.foi.hr/index.php/jios/article/view/123
Journal of Information and Organizational Sciences; Vol. 33 No. 2 (2009)
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oai:jios.foi.hr:article/129
2010-06-30T15:40:33Z
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Considering Interactions among Multiple Criteria for the Server Selection
Čančer, Vesna
University of Maribor, Faculty of Economics and Business Maribor, Razlagova 14, 2000 Maribor, Slovenia
Decision-making about server selection is one of the multi-criteria decision-making (MCDM) processes where interactions among criteria should be considered. The paper introduces and develops some solutions for considering interactions among criteria in the MCDM problems. In the frame procedure for MCDM by using the group of methods, based on assigning weights, special attention is given to the synthesis of the local alternatives’ values into the aggregate values where the mutual preferential independence between two criteria is not assumed. Firstly, we delineate how to complete the additive model into the multiplicative one with synergic and redundancy elements in the case that criteria are structured in one level and in two levels. Furthermore, we adapted the concept of the fuzzy Choquet integral to the multi-attribute value theory. Studying and comparing the results of the example case of the server selection obtained by both aggregation approaches, the paper highlights the advantages of the first one since it does not require from decision makers to determine the weights of all possible combinations of the criteria and it enables the further use of the most preferred MCDM methods.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
application/pdf
//jios.foi.hr/index.php/jios/article/view/129
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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oai:jios.foi.hr:article/132
2010-07-02T09:08:59Z
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Generic icons – yes or no?
Bedi, Krunoslav
Žajdela Hrustek, Nikolina
The information society has become increasingly dependant on programs that are subjected to frequent evolutive, basic and logical changes for a variety of reasons whereas the visual design of the program/program interface mostly remains the same or gets slightly modified. The development of technology has become to such an extent a commonplace that the use of redesigned programs implies icons that are visually acceptable although representing obsolete technologies and that are eventually hard to change due to the habits developed by the program users. The research presents a study into the personal preference as to a particular icon, “Save” for example, and into the perception of the visual identities of today's programs under the circumstance of program icons being not compliant with the technological state-of-the-art. Based on the obtained results, the survey that included students attending web design and media technician courses and ECDL course participants who come in contact with computers and programming tools for the first time should enlighten both teachers and designers of programming interfaces about the way of linking the formal knowledge with a constructivist approach to designing and redesigning programs.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
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Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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From the Editor
Vrček, Neven
University of Zagreb, Faculty of Organization and Informatics, Varazdin
Dear readers,
I proudly welcome you to Issue 2 of Volume 33 of the Journal of Information and Organizational Sciences.
Let me remind you that JIOS is published on the two-issues-per-volume basis, with one volume published annually. One issue of the volume is usually dedicated to CECIIS, the international scientific conference organized and hosted by the Faculty of Organization and Informatics. These special issues of JIOS normally contain a selection of best scientific papers presented at the Conference. The second issue is reserved for scientific papers in the fields of information sciences as well as a range of scientific fields related with information sciences, particularly applied ICT in economics and business.
Owing to the efforts of the Editorial Board aimed at including JIOS in a number of relevant databases, JIOS has been steadily increasing its visibility with every new volume. As a result, JIOS is currently being cited in seven databases that cover a variety of scientific topics connected to information sciences, computing and applied ICT.
In this issue you will find a selection of several original scientific papers, two preliminary communications and one review paper. We hope that the variety of themes reflects some of your own research interests, thus making the papers inspirational for your future work.
As in all my letters addressed to the respected readership of JIOS, I would like to use this opportunity to motivate prospective authors among you, dear readers, to submit papers at www.jios.foi.hr. You are also invited to share with us your comments or critical remarks regarding the papers previously published in the Journal. Your willingness to become a peer-reviewer for submitted papers would be much appreciated as by choosing to do so you would contribute significantly to the rising quality of JIOS.
Faculty of Organization and Informatics, University of Zagreb
2009-12-15 12:17:17
application/pdf
//jios.foi.hr/index.php/jios/article/view/135
Journal of Information and Organizational Sciences; Vol. 33 No. 2 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/136
2009-12-15T12:17:17Z
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Cover pages
Vrček, Neven
University of Zagreb, Faculty of Organization and Informatics, Varazdin
Here you can download journal cover pages.
Faculty of Organization and Informatics, University of Zagreb
2009-12-15 12:17:17
application/pdf
//jios.foi.hr/index.php/jios/article/view/136
Journal of Information and Organizational Sciences; Vol. 33 No. 2 (2009)
eng
Copyright (c)
oai:jios.foi.hr:article/137
2010-12-14T10:52:05Z
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An Approach to Optical Network Design using General Heuristic Optimization Framework
Lacković, Marko
http://www.markolackovic.com
The article tackles the problem of optimization methods in optical network design process, based on optimal traffic routing with the goal to minimize the utilized network resources for given topology and traffic demands. An optimization framework Nyx has been developed with the focus on flexibility in solving optimization problems by implementing general heuristic search techniques. Nyx modular organization has been described, including coding types for solutions and genetic algorithm as the optimization method. Optimal routing has been implemented to demonstrate the use of Nyx in the optical network design process. Optimal routing procedure has been applied to Pan-European optical network with variations of routing procedures and the number of wavelengths. The analysis included no protection scenario, 1+1 protection and path restoration. The routing was performed using shortest path routing and optimal routing which minimizes the use of optical network resources, being network multiplexers, amplifiers and fibers.
Faculty of Organization and Informatics, University of Zagreb
2010-12-14 10:42:34
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//jios.foi.hr/index.php/jios/article/view/137
Journal of Information and Organizational Sciences; Vol. 34 No. 2 (2010)
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Copyright (c)
oai:jios.foi.hr:article/139
2010-06-30T15:40:33Z
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Fuzzy Linguistic Optimization on Multi-Attribute Machining
Lan, Tian-Syung
Department of Information Management, Yu Da University
Wu, Chen-Feng
Department of Information Management, Yu Da University
Wang, Ming-Yung
Graduate Institute of Engineering Management, Tatung University
Lo, Chih-Yao
Department of Information Management, Yu Da University
Most existing multi-attribute optimization researches for the modern CNC (computer numerical control) turning industry were either accomplished within certain manufacturing circumstances, or achieved through numerous equipment operations. Therefore, a general deduction optimization scheme proposed is deemed to be necessary for the industry. In this paper, four parameters (cutting depth, feed rate, speed, tool nose runoff) with three levels (low, medium, high) are considered to optimize the multi-attribute (surface roughness, tool wear, and material removal rate) finish turning. Through FAHP (Fuzzy Analytic Hierarchy Process) with eighty intervals for each attribute, the weight of each attribute is evaluated from the paired comparison matrix constructed by the expert judgment. Additionally, twenty-seven fuzzy control rules using trapezoid membership function with respective to seventeen linguistic grades for each attribute are constructed. Considering thirty input and eighty output intervals, the defuzzifierion using center of gravity is thus completed. The TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) is moreover utilized to integrate and evaluate the multiple machining attributes for the Taguchi experiment, and thus the optimum general deduction parameters can then be received. The confirmation experiment for optimum general deduction parameters is furthermore performed on an ECOCA-3807 CNC lathe. It is shown that the attributes from the fuzzy linguistic optimization parameters are all significantly advanced comparing to those from benchmark. This paper not only proposes a general deduction optimization scheme using orthogonal array, but also contributes the satisfactory fuzzy linguistic approach for multiple CNC turning attributes with profound insight.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
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//jios.foi.hr/index.php/jios/article/view/139
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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oai:jios.foi.hr:article/140
2010-12-14T10:52:05Z
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Online privacy: overview and preliminary research
Mekovec, Renata
Over the last decade using the Internet for online shopping, information browsing and searching as well as for online communication has become part of everyday life. Although the Internet technology has a lot of benefits for users, one of the most important disadvantages is related to the increasing capacity for users’ online activity surveillance. However, the users are increasingly becoming aware of online surveillance methods, which results in their increased concern for privacy protection. Numerous factors influence the way in which individuals perceive the level of privacy protection when they are online. This article provides a review of factors that influence the privacy perception of Internet users. Previous online privacy research related to e-business was predominantly focused on the dimension of information privacy and concerned with the way users’ personal information is collected, saved and used by an online company. This article’s main aim is to provide an overview of numerous Internet users’ privacy perception elements across various privacy dimensions as well as their potential categorization. In addition, considering that e-banking and online shopping are one of the most widely used e-services, an examination of online privacy perception of e-banking/online shopping users was performed.
Faculty of Organization and Informatics, University of Zagreb
2010-12-14 10:42:34
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//jios.foi.hr/index.php/jios/article/view/140
Journal of Information and Organizational Sciences; Vol. 34 No. 2 (2010)
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oai:jios.foi.hr:article/141
2010-06-30T15:40:33Z
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Strategic Analysis and Model Construction on Conflict Resolution with Motion Game Theory
Lo, Chih-Yao
Chang, Yu-Teng
Yu Da University
Department of Information Management
This research uses the “Participating Observation Method” to observe the interaction between manufacturer and distributor negotiation strategies, determine the preference and expectation of participants, and establish a framework for this type of research. Then it sets up the “analysis framework of negotiation strategies” between the manufacturer and the distributor based on an analysis of the respective conditions, advantages, and disadvantages of the manufacturer and distributor. Thirdly, this study sets up a reward matrix of the strategy action game between the manufacturer and the distributor. Then establishes a set of feasible “negotiation models” based on the reward matrix of the strategy game between the both parties to observe how the manufacturer and the distributor make their own bargaining decisions in the situation of information asymmetry or exterior opportunity/threat. Finally, this study establishes a “multi-agent strategy game protocol system model” to solve the conflict resulting from the self-strategizing of both parties for their own interests, and to achieve the utmost efficiency in the negotiation.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
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//jios.foi.hr/index.php/jios/article/view/141
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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oai:jios.foi.hr:article/144
2010-06-30T15:40:33Z
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Syntactic Method for Vehicles Movement Description and Analysis
Staniek, Marcin
Piecha, Jan
The syntactic primitives and the description language can be used for assignment and analysis of vehicles movement. The paper introduces a method that allows spotting vehicles’ manoeuvres on and between traffic lanes, observing images, registered by a video camera. The analysis algorithms of the vehicles’ movement trajectories were considered in this paper as well.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
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//jios.foi.hr/index.php/jios/article/view/144
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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oai:jios.foi.hr:article/145
2010-06-30T15:40:33Z
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Personal Efficacy and Factors of Effective Learning Environment in Higher Education: Croatian and American Students
Vidaček - Hainš, Violeta
Prats, Harry
Appatova, Victoria
Successful learning in higher education incorporates various factors related to knowledge, skills, habits, and motivation. Additionally, students’ personalities and self-efficacy may contribute to their adjustment, planning of activities, and achieving success. The objective of this paper is to analyze students’ needs for support services, which enhance the effectiveness of their learning environment at higher education institutions. Answers received from a sample of undergraduate freshmen at one American University and one Croatian University were analyzed and compared. The students from both countries agree that there is a need for developing self-reliance and personal responsibility in using support services, as well as for the timely and accurate information on availability of these services. Students’ suggestions and their desire to enhance effectiveness of their learning environment may be used in creating and improving support services in higher education institutions as well as training their staff.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
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//jios.foi.hr/index.php/jios/article/view/145
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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oai:jios.foi.hr:article/146
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Theoretical difference between impact factor and influence factor
Pečarić, Đilda
Faculty of Humanities and Social Sciences
Department of Information Sciences
The University of Zagreb
Ivana Lučića 3, 10000 Zagreb, Croatia
Tuđman, Miroslav
Faculty of Humanities and Social Sciences
Department of Information Sciences
The University of Zagreb
Ivana Lučića 3, 10000 Zagreb, Croatia
Bibliometric constructions of "knowledge maps" and "cognitive structures of science" do not differentiate between impact and influence factors. The difference can be constructedaccording to different meaning and interpretation of the terms reference and citation. Reference is "acknowledgment which one author gives to another", whereas citation is "acknowledgment which one document receives from another". Development of Information Science according to period and subject area is analyzed on the corpus of citation literature retrieved from doctoral dissertations in Information Science from 1978 to 2007 at Croatian universities. The research aim is to indicate the difference between document impact factor and author's influence factor (i.e. reference ability to produce effects on actions, behavior, and opinions of authors of doctoral theses). The influence factor serves to distinguish the key role of cited authors in time and according to the duration of the influence (the average age for cited papers of dominant authors in different periods is between eight and ten years). The difference between linear and interactive communication seems vital for the interpretation of cited half-life, i.e. the attitude of one science community towards used information resources and cognitive heritage. The analyzed corpus of 22,210 citations can be divided into three communication phases according to influence factor criteria: in the phase of dialogue and interactive communication 25% of bibliographic units are cited in the first four years; in the second phase another 25% of units are cited from the fifth to the ninth year; after ten years, in the dominant linear communication phase, approximately 30% of units are cited.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
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//jios.foi.hr/index.php/jios/article/view/146
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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oai:jios.foi.hr:article/150
2010-06-30T15:40:33Z
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Social network analysis of study environment
Divjak, Blaženka
Faculty of Organization and Informatics, Varaždin
Peharda, Petra
Faculty of Organization and Informatics, Varaždin
Student working environment influences student learning and achievement level. In this respect social aspects of students’ formal and non-formal learning play special role in learning environment. The main research problem of this paper is to find out if students' academic performance influences their position in different students' social networks. Further, there is a need to identify other predictors of this position. In the process of problem solving we use the Social Network Analysis (SNA) that is based on the data we collected from the students at the Faculty of Organization and Informatics, University of Zagreb. There are two data samples: in the basic sample N=27 and in the extended sample N=52. We collected data on social-demographic position, academic performance, learning and motivation styles, student status (full-time/part-time), attitudes towards individual and teamwork as well as informal cooperation. Afterwards five different networks (exchange of learning materials, teamwork, informal communication, basic and aggregated social network) were constructed. These networks were analyzed with different metrics and the most important were betweenness, closeness and degree centrality. The main result is, firstly, that the position in a social network cannot be forecast only by academic success and, secondly, that part-time students tend to form separate groups that are poorly connected with full-time students. In general, position of a student in social networks in study environment can influence student learning as well as her/his future employability and therefore it is worthwhile to be investigated.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
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Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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oai:jios.foi.hr:article/152
2010-06-30T15:40:33Z
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eTourism: A comparison of online and offline bookings and the importance of hotel attributes
Crnojevac, Igor H.
Gugić, Jadranka
Karlovčan, Saša
Internet is an important tool for information searching and purchasing of products especially in tourism. This paper investigates the impact of demographic and travel characteristics of hotel guests on online and offline reservations. It also examines the importance of hotel attributes in selecting a hotel and the differences in priorities between guests who book their accommodation online and offline. Data was collected by surveys of guests in three hotels in Dubrovnik. The results of the study showed that the method of booking mostly depends on the nature of travel, and that the importance of hotel attributes does not differ much between different groups of guests.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
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//jios.foi.hr/index.php/jios/article/view/152
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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oai:jios.foi.hr:article/157
2010-06-30T15:40:33Z
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Describing Layered Communication Architecture in SDL Markup Language
Bagic Babac, Marina
University of Zagreb, Faculty of Electrical Engineering and Computing
Kunštić, Marijan
Unversity of Zagreb
Faculty of Electrical Engineering and Computing
Jevtić, Dragan
Unversity of Zagreb
Faculty of Electrical Engineering and Computing
Using Specification and Description Language (SDL) as a formal language for specification of requirements for the complex, real-time and distributed systems involving many concurrent activities, we have come to the idea of making the language independent of platforms and operating systems which may use it. Shortly, we have developed markup version of the SDL language, and named it SDL Markup Language. It is an XML-based version of the SDL-PR (Phrase Representation), an SDL textual notation. We use the language to specify the complex communications protocols, which are used in wide range of layered architectures. We provide the specification from the INRES protocol in SDL-ML.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
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//jios.foi.hr/index.php/jios/article/view/157
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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oai:jios.foi.hr:article/158
2010-06-30T15:40:33Z
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Automatically Generated Keywords: A Comparison to Author-Generated Keywords in the Sciences
Hurt, Charlie D.
University of Wisconsin
Department of Computer Science & Information Systems
River Falls, WI 54022 USA
This paper examines the differences between author-generated keywords and automatically generated keywords in one area of scientific and technical literature. Using inverse frequency, keywords produced using both methods are examined using a maximum likelihood algorithm. By reducing the scope and size of the corpus of literature examined, this study more closely emulates the information gathering processes of scientists and technologists. Care was taken in developing the sample used, balancing statistical factors to allow interpretable outcomes and replication. The results of the study indicated there are no statistically significant differences between the two techniques.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
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//jios.foi.hr/index.php/jios/article/view/158
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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oai:jios.foi.hr:article/163
2010-06-30T15:40:33Z
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Analytical method of CIM to PIM transformation in Model Driven Architecture (MDA)
Kardos, Martin
University of Zilina, Faculty of Management Science and Informatics
Drozdová, Matilda
University of Zilina, Faculty of Management Science and Informatics
Information system’s models on higher level of abstraction have become a daily routine in many software companies. The concept of Model Driven Architecture (MDA) published by standardization body OMG1 since 2001 has become a concept for creation of software applications and information systems. MDA specifies four levels of abstraction: top three levels are created as graphical models and the last one as implementation code model. Many research works of MDA are focusing on the lower levels and transformations between each other. The top level of abstraction, called Computation Independent Model (CIM) and its transformation to the lower level called Platform Independent Model (PIM) is not so extensive research topic. Considering to a great importance and usability of this level in practice of IS2Keywords: transformation, MDA, CIM, PIM, UML, DFD. development now our research activity is focused to this highest level of abstraction – CIM and its possible transformation to the lower PIM level. In this article we are presenting a possible solution of CIM modeling and its analytic method of transformation to PIM.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
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//jios.foi.hr/index.php/jios/article/view/163
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
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oai:jios.foi.hr:article/166
2010-12-16T11:38:09Z
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Towards more efficient e-learning, intelligence and adapted teaching material
Žufić, Janko
University of Juraj Dobrila in Pula
Department of Pre-School and Primary School Teaching
I.M. Ronjgova 1, Pula, Croatia
Kalpić, Damir
University of Zagreb
Faculty of Electrical Engineering and Computing
Unska 3, Zagreb, Croatia http://www.fer.hr/damir.kalpic
This article presents results of a research project in which we attempted to determine the relationship between efficient E-learning and teaching materials adapted based on students’ structure of intelligence.
The project was conducted on approximately 500 students, 23 classes, nine elementary schools, with ten teachers of history, informatics and several licensed psychologists. E-teaching material was prepared for the subject of History for eight-grade students of elementary school.
Students were tested for the structure of intelligence, and based on their most prominent component, they were divided into groups, using teaching materials adapted to their most prominent intelligence component. The results have shown that use of the adapted teaching materials achieved 6-12% better results than E-materials not adapted to students’ structure of intelligence.
Faculty of Organization and Informatics, University of Zagreb
2010-12-14 10:42:34
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//jios.foi.hr/index.php/jios/article/view/166
Journal of Information and Organizational Sciences; Vol. 34 No. 2 (2010)
eng
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oai:jios.foi.hr:article/167
2010-07-05T23:15:13Z
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From the Editor
Vrček, Neven
University of Zagreb, Faculty of Organization and Informatics, Varazdin
Dear authors, readers and future authors,It is my pleasure to present you the 1st number of the 34th volume of the Journal of Information and Organizational Sciences – JIOS.
In this issue a selection of 11 original scientific papers and 2 preliminary communications has been included, all of which have undergone a rigourous double-blind review process. Some of the papers published here were already presented at the CECIIS 2009 Conference held in Varaždin between 23rd and 25th September 2009. These papers were nominated for publishing in JIOS by the chairs of the conference tracks they were presented at on the account of their research quality.As in prior issues of the Journal, this one also comprises papers that cover themes from various ICT fields: semantic web, social networks analysis, LMS interoperability, effective learning environment, game theory, model driven architecture, and other topics in the field of applied information sciences. We hope that the variety of themes will draw the attention of researchers in different ICT fields and motivate potential authors to expand the Journal’s thematic scope by other themes that may be of interest to the wider ICT research community.
I would like to use this opportunity to encourage prospective authors among you, dear readers, to submit papers at jios.foi.hr. You are also invited to share with us your comments or critical remarks regarding the papers previously published in the Journal. Further, we would appreciate your willingness to become a peer-reviewer for submitted papers and thus contribute significantly to the rising quality of JIOS.So far JIOS has been indexed in seven well known databases. We are continuously investing a lot of effort to extend the list of databases where JIOS would be cited, in order to make the published papers available to a larger readers’ audience, and give your research a greater impact factor.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
application/pdf
//jios.foi.hr/index.php/jios/article/view/167
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
eng
Copyright (c)
oai:jios.foi.hr:article/168
2010-06-30T15:40:33Z
jios:EDIT
nmb a2200000Iu 4500
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1846-3312
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Cover pages
Vrček, Neven
University of Zagreb, Faculty of Organization and Informatics, Varazdin
Here you can download journal cover pages.
Faculty of Organization and Informatics, University of Zagreb
2010-06-30 15:40:33
application/pdf
//jios.foi.hr/index.php/jios/article/view/168
Journal of Information and Organizational Sciences; Vol. 34 No. 1 (2010)
eng
Copyright (c)
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