Neven Vrcek

• Doctor of Philosophy
• Dean at University of Zagreb

Millions of individuals worldwide suffer from a motor disability, impeding their ability to perform daily tasks independently. Thanks to modern technologies, such as electrooculography (EOG), it is possible to provide them with a tool enhancing their quality of life. EOG, an electrophysiological method, detects DC potentials influenced by eye movem...

Background Innovating how organisations run their business is a strategic decision to create more value for customers using or consuming the product and/or service provided. In addition to the incentive of everybody embracing digital transformation, digital technologies, and digital innovation, which frame changes of operating business models today...

Semantic Interoperability of digital twins in smart cities is crucial for improving the efficacy and compatibility of digital twins' communication, which will result in improved smart cities and lifestyles. Without constant interoperability improvement, it will be impossible to effectively communicate and share information between digital twins. Th...

The subject of this research is to determine the level of digital technology acceptancein micro and small organizations. There is a lack of research in the existing literaturethat would move away from existing models and theories and explain the reasons fordigital technology acceptance by micro and small organizations. It was noticed thatresearch o...

Digital transformation (DT) of agencies for students`part time jobs in the Republic of Croatia (RC) began to be mentioned through the adoption of the Act of student activities (Act). The work of students in the Republic of Croatia is regulated by the Act [1], which provides the legal basis for the DT system of mediation in employment. The Act and t...

It is reported that open data (OD) leads to transparency, citizen participation, cooperation, growth of the economy and public service. The open data ecosystem is described as a network of interactions between stakeholders involved in data processing, application development, privacy protection, security, and usage. The paper's main objective is to...

The readiness of companies to successfully meet the market demands requires knowledge and opportunities based on cooperation by establishing digital ecosystems. Integration and management of advanced technologies within a networked digital ecosystem, and reconfiguration of all aspects of organizational and operational activities along the entire va...

The Digital Transformation era has forced upon some specific terms related to the digital data. Very popular buzzwords nowadays are Open Data (OD) and Big Data (BD). Considering that issue, this paper presents the importance of public policy documents openness and the role of open government data accessibility on the example of e-Inclusion issues o...

Today's industrial development is driven by global competition and demands of an everchanging market, being thereby exposed to the radical advancement of digital technologies. The 4th industrial revolution has brought opportunities to improve products and services, but it also poses a threat to industrial manufacturers in view of the demands and co...

Nature of visible light communication (VLC) in vehicle‐to‐vehicle (V2V) communication is such that it does involve certain aspects of asymmetry. This concept is known issue in wireless networking systems, and it is one of the reasons for the famous node deafness issue. It degrades network performance and it is addressed in various network layers an...

Cloud computing is nowadays becoming a popular paradigm for the provision of computing infrastructure that enables organizations to achieve financial savings. On the other hand, there are some known obstacles, among which vendor lock-in stands out. Furthermore, due to missing standards and heterogeneities of cloud storage systems, the migration of...

Context: Application of component based software engineering methods to heterogeneous computing (HC) enables different software configurations to realize the same function with different non–functional properties (NFP). Finding the best software configuration with respect to multiple NFPs is a non–trivial task. Objective: We propose a Software Comp...

Nowadays governmental and non-governmental organizations and private businesses offer a range of electronic services that, if used, directly or indirectly affect quality of life. The supply of electronic services is growing fast, and this growth is expected to continue in the near but also in the distant future. Current generation of digital native...

Business Process Management (BPM) often encompasses process improvements based on Information and Communication Technologies (ICT). Business processes simulation can be used as a tool for estimation of optimization parameters. Commercially available BPM tools in accordance with BPMN 2.0 support have built-in simulation features, which vary in the e...

Ontologies can be used to describe common cloud functionalities and enable common terminology to assist in cloud interoperability. In this work, we have developed the ontology for resources and operations and the ontology of interoperability problems. The aim is to clearly describe and categorize the existing functionalities, features and specifici...

The Share-PSI 2.0 Best Practices1 are designed to act as a source of guidance for public organisations fulfilling their duties under the European Commission’s Revised PSI Directive2. It extends and contextualises the W3C Data on the Web Best Practices, which provides general advice for sharing information online in such a way as to maximise its val...

Interoperability problems between cloud providers are one of the most serious issues of this new computing paradigm. A methodology is needed to systematically and effectively find and solve interoperability problems. For these reasons, a new methodology with detailed steps to find and solve interoperability problems is proposed here. This new metho...

Cloud computing is getting increasingly important part of IT strategies in modern organizations [5] and nowadays it is generally positioned in broad context of strategic planning of information systems [2] [3]. Since cloud services can appear in various flavors (software as a service, platform as service, etc.) there is no one common approach to th...

Smart City concept comprises numerous technologies and heavily depends on sensors to be aware of its environment in order to adapt and to evolve. Wireless sensors networks thrive on the latest development of sensor technologies where sensors dynamically connect and rely on wireless networks which might not be available all the time or their geograp...

The numerous heterogeneities among different providers make platform as a service interoperability an interesting and complex research and practical problem. For example, each provider offers its own remote application programming interfaces (APIs). The main aim of this paper is to identify and address service-level interoperability issues when usi...

The main purpose of this chapter is to emphasize the problem of e-government project risks and to introduce a methodology for risk assessment and calculation of costs associated with risk occurrence in e-government projects based on Bayesian networks. The proposed methodology presents a new approach to the assessment of risks and costs related to e...

The main purpose of this chapter is to emphasize the problem of e-government project risks and to introduce a methodology for risk assessment and calculation of costs associated with risk occurrence in e-government projects based on Bayesian networks. The proposed methodology presents a new approach to the assessment of risks and costs related to e...

Each organization should be aiming at higher efficiency. Government institutions should not make an exception. Business processes of today's government institutions are extremely influenced by modern ICT and user acceptance plays a pivotal role in success of all ICT projects. As government tends to design and launch online services without actually...

A recent development of heterogeneous platforms (i.e. those containing different types of computational units such as multicore CPUs, GPUs, and FPGAs) has enabled significant improvements in performance for real-time data processing. This potential, however, is still not fully utilized due to a lack of methods for optimal configuration of soft-ware...

Present day software is largely composed of smaller manageable units which work together to overcome a larger problem. Considering software system as a network of connected software elements, e.g. service oriented architecture, it would be eligible to methods for analyzing networks, e.g. social network analysis. This paper presents a theoretical fo...

A recent development of heterogeneous platforms (i.e. those containing different types of computing units such as multicore CPUs, GPUs, and FPGAs) has enabled significant improvements in performance processing large amount of data in realtime. This possibility however is still not fully utilized due to a lack of methods for optimal configuration of...

Beside financial indicators, IT cost benefit analysis is influenced by various technical parameters. This article explores influence of CPU utilization rate on lease vs. buy decision making process. The analysis utilizes existing cost models and testes functional dependencies on utilization rate. The article shows that only very high utilization ra...

Many benefits from implementation of e-business solutions are related to network effects which means that there are many interconnected parties utilizing the same or compatible technologies. The large-scale adoption of e-business practices in public sectors and in small and medium enterprises (SMEs)-prevailing economic environments will be successf...

The main purpose of this chapter is to emphasize the problem of e-government project risks and to introduce a methodology for risk assessment and calculation of costs associated with risk occurrence in e-government projects based on Bayesian networks. The proposed methodology presents a new approach to the assessment of risks and costs related to e...

Many benefits from implementation of e-business solutions are related to network effects which means that there are many interconnected parties utilizing the same or compatible technologies. The large-scale adoption of e-business practices in public sectors and in small and medium enterprises (SMEs)-prevailing economic environments will be successf...

The development of e-Government at the local level is becoming the subject of interest of many researchers. The prevailing opinion is that e-Government is developing as an evolutionary model and while evaluating the status and maturity of the e-Government the e-Government Maturity Model (eGMM) is in use. During 2009, a survey of maturity of the tow...

Many organizations from the public and the private sector are planning to turn to Cloud Computing services, whose main benefits are flexibility, pay-per-use model and significant cost reduction. However, this new business paradigm for the provision of computing infrastructure has certain obstacles, including provider lock-in. When a client chooses...

This paper illustrates the results of an analysis of business sectors covered by ERP solutions. The authors answer questions in regards to business sectors supported by ERP solutions, while presenting a list of supported business sectors. Using a statistical analysis, an answer is given to the question of whether there are any business sectors that...

Privacy concerns are identified as one of the main factors that have a negative impact on Internet users' online behaviour. Often, Internet users do not have confidence that a web site will ensure their privacy either in collection nor in future usage of their personal information. In this article we propose a categorization of factors that can inf...

Many benefits from implementation of e-business solutions are related to network effects which means that there are many interconnected parties utilizing the same or compatible technologies. The large-scale adoption of e-business practices in public sectors and in small and medium enterprises SMEs-prevailing economic environments will be successful...

Electronic invoicing (e-invoicing) between companies in Europe is in raise and broader development. Companies that implement this new way of interoperability, information service providers that offers new kind of services and countries that advance their legislation to support electronic interchange of structured electronic invoices, dream about au...

The assessment of the acceptability and the value of IT projects in the public sector, especially when the projects feature the qualitative value along with the monetary one, is a complex problem. There are certain methodologies in the world that help various organizations in decision-making process when projects are being chosen. The paper surveys...

Public e-services are very important to improve the communication among citizens and businesses on the one hand and government on the other hand. In this paper we present public e-service cost-benefit analysis methodology for assessing tangible and intangible costs and benefits. Our methodology is incorporated in the service lifecycle defined by SP...

This paper illustrates the results of an analysis of business sectors covered by ERP solutions. The authors answer questions in regards to business sectors supported by ERP solutions, while presenting a list of supported business sectors. Using a statistical analysis, an answer is given to the question of whether there are any business sectors that...

Development of various e-services and e-government solutions has become a global trend in recent years. Since this field is rapidly growing and developing in many countries which vary in their strategies, goals, ways of implementation and funds invested in such services, a few different methodologies have been developed to measure their results and...

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Service-oriented architecture (SOA) is a set of principles for designing extensible, federated and interoperable services, and it represents a new evolutional spiral in the program-applications development and in the evolution of the information systems concept. This article analyses necessary set of prerequisites which should be fulfil by organiza...

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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 include...

Business process reengineering (BPR) projects bear high risk and present tremendous effort for organizations. That is why is important to evaluate possible scenarios before BPR project actually starts. Simulation modeling might be used to evaluate effects of large scale BPR projects. The article presents use of simulation modeling in public sector...

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 me...

Previous research showed that considerable differences exist in telemedical legislation within different countries. The result points out the existence of major grasp between legislation in the USA, Europe and countries like Croatia. This article deals with analysis of chronological steps of legislation development and enactment. The focus of resea...

Different modern information and communication technologies are emerging in all segments of our lives. The simplicity of using these high-tech and high-performance components enables us to build a wide range of enhanced and fast-in-reaction telemedical systems with the purpose of improving the quality of living. While building these systems it is e...

Wide availability of modern information-communication technologies extends our potentials when building different and sophisticated healthcare systems. Using a modular approach, while integrating these technologies, makes resulted systems more flexible. With small changes on certain components these systems could provide slightly or completely diff...

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 me...

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...

ERP systems have been the topic of interest for the researchers and practitioners for several decades. There are many success stories about their use and implementation [2, 42, 47], but also there are significant evidences of failures [16, 17, 18, 21, 35, 48, 49]. The controversy about them mostly arises from the fact that extremely high costs of l...

Chronic ishemic heart disease is the most common cause of death in industrialized countries and is usually associated with fatal sustained ventricular tachycardia. Early recognition and emergency procedure is a key for surviving of these patients. Goals: In this paper we discuss abilities and advantages of new information and communication technolo...

Modern mobile electrocardiographic equipment converges various technologies which contribute to the speed of reaction in critical situations and contributes to the quality of life of the patient. Such convergence is valuable, but solutions are still immature and there are certain problems which should be solved before full implementation. This arti...

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 ro...

Problems in information system (IS) development are empirically investigated from a communication perspective in a survey of 227 information technology specialists. Specifically, the intensity and causation of communication problems is researched at different segments of communication during IS development projects. The results indicate that the gr...

The usage of modern information technologies will be successful only if information system development is aligned with the business system development strategy. Such an approach is usually regarded as the strategic planning of information systems (SPIS). A unified methodology for SPIS does not exist yet, although several methods, techniques and tem...

In the modern world of business, companies with a clear strategic vision for the alignment of business processes and information technologies are rewarded. Such solutions require a high level of business and technical expertise in improving processes that bring most benefits. Standard software packages are usually insufficient to support all the pa...

The usage of modern information technologies will be successful only if information system development is aligned with the business system development strategy. Such an approach is usually regarded as the strategic planning of information systems (SPIS). A unified methodology for SPIS does not exist up to the present time, although several methods,...

Modern business relationships demand interoperability of various e-commerce applications using standardized protocols and formats for data interchange. A key factor for establishing seamless communication among enterprises is a common business vocabulary. The eXtensible Markup Language (XML) is one of the most promising standards for defining and n...

The relevance of the communication in the complex information system (IS) development projects is becoming issue of primary importance. Various researches show that many projects failed due to inadequate management of communication. Project data exchange is still not performed in a structured and standardised manner, which leads to misunderstanding...

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Communication is one of the crucial factors for the successful management of complex projects. In the process of planning, running and checking project results, information is exchanged through communication channels. Data exchange within the project domain has to be structured and standardised in order to be understood by each involved party. In o...

Modern mobile electrocardiographic equipment converges various technologies which contribute to the speed of reaction in critical situations and contributes to the quality of life of the patient. Such convergence is valuable, but solutions are still immature and there are certain problems which should be solved before full implementation. This arti...

This paper discusses potential uses of Short Message Services (SMS) as a means for mobile advertising. The adoption and user experience of mobile ad-vertising was investigated in a pilot study. A convenience sample of 62 infor-matics students was exposed to a two week mobile advertising campaign in which they received and responded to 1-4 different...

Various studies and surveys focus on critical factors for a successful e-government and e-services implementation at a local or a national level. Many of those critical factors can be placed within three important areas: ICT infrastructure, management issues, and human resources. This paper presents the results from a survey which was sent to the r...

The main objective of this study is to obtain a holistic view of Cloud Computing ontologies, their applications and focuses. The identification of primary studies in this systematic review is based on a pre-defined research protocol with a research question, inclusion and exclusion criteria and a search strategy. We summarize the selected studies i...

The main objective of this paper is to introduce methodology for risk assessment and corresponding costs in e-government projects. The methodology is based on application of Bayesian networks. In order to connect risks with e-government service value, typical Bayesian networks based on probabilities were upgraded with costs. A method for calculatio...

Here you can download journal cover pages.