Journal of Information and Organizational Sciences (JIOS)
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Exploring Technostress: Results of a Large Sample Factor Analysis
No full textWith reference to the results of a large sample factor analysis, the article aims to propose the frame examining technostress in a population. The survey and principal component analysis of the sample consisting of 1013 individuals who use ICT in their everyday work was implemented in the research. 13 factors combine 68 questions and explain 59.13 per cent of the answers dispersion. Based on the factor analysis, questionnaire was reframed and prepared to reasonably analyze the respondents’ answers, revealing technostress causes and consequences as well as technostress prevalence in the population in a statistically validated pattern. A key elements of technostress based on factor analysis can serve for the construction of technostress measurement scales in further research
Established and Emerging Decision Constructs – A Taxonomic Perspective
No full textOne might assume information systems (IS) are developed so systems enhance the user experience and facilitate a satisfying, productive interaction. From prior research, the authors established this assumption was not safe and certain design features amongst some online retailers were atypical of ‘good’ design elsewhere. It was apparent the transactional process was being used to present consumers with optional extras (and other decisions) that not only slowed the process down, but also stressed and agitated users. The research identified some new and unusual decision constructs such as the ‘must-opt’. The objective of the research presented herein is two-fold: to make an incremental contribution in first theorising and then identifying and categorising into a taxonomy some new decision constructs alongside established ones encountered throughout on-line Business-to-Consumer (B2C) transactional processes followed by a preliminary study confirming their existence and examining their clarity
MATT: Multi Agents Testing Tool Based Nets within Nets
No full textTesting is a software development activity, devoted to evaluating product quality and improving it by identifying defects and problems. Concerning multi agent systems, testing is a challenging task, which asks for new testing techniques dealing with their specific nature. The techniques need to be effective and adequate to evaluate agent’s autonomous behaviors and build confidence in them.The "Model Based Testing" (MBT) is a technique particularly interested among all existing solutions of tests. This latter is based on a system model, which produces abstract test cases. To run these last ones against systems under test,the abstract test cases have to be transformed to concrete ones.As part of this effort, we propose a model based testing approach for multi agent systems based on such a model called Reference net, where a tool, which aims to providing a uniform and automated approach is developed. The feasibility and the advantage of the proposed approach are shown through a short case study
Estimation and Comparison of Underground Economy in Croatia and European Union Countries: Fuzzy Logic Approach
No full textUnderground economy (UE) is one of the undesired facts in every country. The size of the underground economy is an important parameter in determining the effectiveness of fiscal and monetary policy, the rate of economic growth, and income distribution. From a scientific point of view analysis of the UE is faced with severe data problems because underground activities are not recorded and anyone engaged in it has an incentive to hide them. Therefore, economists have developed a variety of methods to estimate the size of the underground economy. The aim of this paper is to estimate and compare the size of the Croatian underground economy with the underground economy of European Union (EU) countries in the period of 2004 till 2012.The purpose of this paper is to address this issue in three ways. First, we review existing estimates of the size of the underground economy. Second, we apply a novel calculation method for estimation: fuzzy logic. Third, we calculated and compared underground economy index for 25 European Union countries and compared it, with special focus on Croatian underground economy index. Results indicated that Croatia has the thirteenth largest underground economy among measured members of the European Union. This study is the first of its kind with recent data to measure the size of underground economy in European Union countries by employing fuzzy logic approach
Agent-Based Modelling applied to 5D model of the HIV infection
No full textThis paper proposes a Multi-Agents Model to simulate the phenomenon of the infection by the human immunodeficiency virus (HIV). Since the HIV was isolated in 1983 and found to be the cause of the Acquired Immune Deficiency Syndrome (AIDS)in 1984, lots of studies have been carried out to understand the complex dynamics between the HIV virus and the immune system.The simplest model was the 3D mathematical model. But the complexity of this phenomenon and the diversity of cells and actors which affect its evolution requires the use of new approaches such as multi-agents approach that we have applied in this paper. The results of our simulator on the 5D model are promising because they are consistent with biological knowledge’s. Therefore, the proposed approach is well appropriate to the study of population dynamics in general and could help to understand and predict the dynamics of HIV infection
From the Editor
No full textDear readers,I am proud to present the new issue of Journal of Information and Organizational Sciences. This issue contains five high quality papers: three original scientific papers, and two preliminary communications, written by 13 authors from Europe and Africa. I am glad that all papers in this issue come from foreign countries. That proves that Journal of Information and Organizational Sciences is recognized journal inthe international scientific community.I would like to thank all authors for the high quality of the papers and reviewers for their contribution in the selection of the papers as well as for suggestions that helped authors to improve their papers. Also, I would like to express my thanks to the colleagues from the publishing board for their efforts in the technical reviewing of the papers, technical editing, distribution and all the work they built in this issue.Alen LovrenčićEdito
Use of Informatics Textbooks in School Classroom
No full textTextbooks are an integral part of school classroom teaching. Their use has been researched for the past few decades with a focus on a wide variety of aspects. This paper is focused on the published literature relative to textbooks with a special focus on the pedagogical use of textbooks within school classroom of informatics. Sixty two papers of various topics related to textbooks have been analyzed. The focus was placed on a) identifying the most influential papers related to textbooks where we identified nine key papers; b) prevailing topics in research papers related to informatics’ textbooks where analysis showed that most papers related to textbooks and informatics are focused on textbook content; c) identifying which topics have been researched in other fields related to use of textbooks but have not been so far included in surveys related to informatics subject, where we identified five main categories of topics researched in other fields
From the Editor
No full text40 Years of Publishing in Information and Organizational SciencesDear readers,I am honoured to serve as the Editor of the Journal of Information and Organizational Sciences. I proudly welcome you to the issue that marks the 40th year of continuous publication of the Journal in information and organizational sciences. As such, it has the distinction of one of the longest histories of publication in this field.The Journal was inaugurated in 1977 as the journal of the University of Zagreb Faculty of Organization and Informatics under the title Zbornik radova. As the quality of the Journal grew and the number of foreign authors contributing papers in English increased, it was renamed as Zbornik radova: journal of information and organizational sciences in 1998. Following the changes in the publishing policy which defined that only papers written in English would be accepted for publication, in 2002 its name was changed again into Journal of Information and Organizational Sciences: JIOS. The Journal adopted its current name in 2008.Today the Journal is referenced in 13 scientific referencing databases, including INSPEC, SCOPUS and EBSCO and is publishing papers by authors from Europe, Asia, South America and Africa. It boasts an international review board composed of scientists from all continents and a high quality double-blind review process. In all respects, it is a worldwide recognized scientific journal in the field of information and organizational sciences, and its quality is growing continuously.In the last 40 years, we have published over 650 scientific and professional papers in the Journal, and, in my humble opinion, have influenced the development of the information and organizational sciences not only in Croatia, but also in Southwest Europe and beyond.For that I wish to thank all the previous Editors of the Journal: Dr. Ivan Abramović, Prof. Boris Aurer, Prof. Marijan Cingula, Prof. Mirko Čubrilo, Prof. Vesna Dušak, Prof. Benedikt Bojanić-Glavica, Prof. Tihomir Hunjak, Prof. Željko Hutinski, Prof. Slavko Kapustić, Prof. Božidar Kliček, Dr. Franjo Kuhanec, Prof. Ivan Lončar, Prof. Mirko Maleković, Prof. Miodrag Ređep, Prof. Franjo Ruža, Prof. Franjo Šulak, Dr. Stjepo Vojvoda, Prof. Neven Vrček, Prof. Boris Zver and Prof. Miroslav Žugaj; all the scientists from Croatia and abroad who have served as members of the Editorial Board; all the members of the Publishing Board dedicated to continual modernization of the Journal layout; all the reviewers, owing to whose effort the quality of the papers has been maintained and raised; finally, to all authors that have contributed their high quality contemporary papers to the Journal. The current Editor as well as the Advisory, Editorial and Publishing Boards are committed to follow in the footsteps of all the former Editors and Board members who have shaped the Journal’s development and reputation.In this issue we are delighted to present two original scientific papers, four high quality survey papers and one preliminary communication. The papers cover a wide set of themes from the fields of information and organizational sciences, so I hope that you will enjoy the reading and find it helpful and inspiring for your future research.Alen LovrenčićEdito
Performance Measurement of Complex Event Platforms
No full textThe aim of this paper is to find and compare existing solutions of complex event processing platforms (CEP). CEP platforms generally serve for processing and/or predicting of high frequency data. We intend to use CEP platform for processing of complex time series and integrate a solution for newly proposed method of decision making. The decision making process will be described by formal grammar. As there are lots of CEP solutions we will take the following characteristics under consideration - the processing in real time, possibility of processing of high volume data from multiple sources, platform independence, platform allowing integration with user solution and open license. At first we will talk about existing CEP tools and their specific way of use in praxis. Then we will mention the design of method for formalization of business rules used for decision making. Afterwards, we focus on two platforms which seem to be the best fit for integration of our solution and we will list the main pros and cons of each approach. Next part is devoted to benchmark platforms for CEP. Final part is devoted to experimental measurements of platform with integrated method for decision support