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With rapid increase in the number of users, services, educational content, and required resources, educational institutions face new challenges in design and deployment of IT infrastructure for e-education. This chapter deals with defining and developing a model of IT infrastructure for e-learning by using cloud computing concept. The first challenge is adoption and implementation of digital identity management systems and the second is providing support for a system that would be able to use all advantages of federation systems for digital identities management. The experimental part of the chapter consists of a study directed towards the validation of the proposed IT infrastructure model for e-learning. Research was conducted in the Laboratory for E-Business at the Faculty of Organizational Sciences. The results of the research show that the implemented model of IT infrastructure enables the system of e-learning to be more efficient, flexible, and more economical.

In this paper we present a model of software defined network infrastructure for an e-learning cloud. The goal of the model was to design a reliable, resilient and scalable infrastructure, that was capable to support dynamic flexibility required for emerging types of applications, advanced e-learning applications and services, as well as to foster increasing speed of data flow. Specifically, the infrastructure should support the education in the fields of modern information and communication technologies, such as cloud computing, enterprise networking, mobile computing, and big data. The Software defined networks (SDN) infrastructure was based on Open Stack cloud management system. Networking as a service was implemented through integration of Neutron, Open Daylight and Open vSwitch solutions. This concept allows intensive collaboration and exchanging data and information with other universities and industry. The evaluation was conducted within the course Cloud infrastructure and services, at Faculty of Organizational Sciences, University of Belgrade, where students learnt to design and deploy software defined networking infrastructure for an enterprise. The results showed that the designed infrastructure can effectively support the learning process. In addition, performance of the e-learning infrastructure was analyzed and discussed.

Crowdsourcing has become an emerging topic in research and practice in the previous years. Numerous research and case studies have discussed crowdsourcing models, benefits and constraints. In addition, many researchers investigated the potentials of the crowdsourcing models as a support to creative processes. However, there has still not been much research related to crowdsourcing in educational environments. In this paper we present an approach to harnessing the potentials of crowd voting through a social network as a support to students' creative projects. The goal of the research was to design and evaluate a model for motivating students' creativity through a crowd voted competition on a social network. The experiment was conducted at the Department of E-business, Faculty of Organizational Sciences, University of Belgrade. Students were assigned a project in 3D modelling and animation. The task was to design a promotional animation that could support the defined marketing activities. The ten best projects were selected by teachers, and posted on a Facebook page for opened crowd voting. Results of the research show that students generally had positive attitudes toward this type of activities. They were motivated to create original projects, as well as to promote their work. Finally, we analyze if students' creativity styles were related to their attitudes and performance.

This study considers the effects of hydrostatic pressure on the line position and fluorescence lifetime for D-5(0) F-7(2) transitions in GdVO4: Eu3+ nanocrystals. The results indicate that the pressure induced the red shift toward longer wavelengths for all the considered lines with different rate. The fluorescence lifetime nonlinearly decreases with pressure in the considered pressure range. High pressure induced the fluorescence lifetime that can be explained with a simple theoretical model. The measured line position and are in a satisfactory agreement with the theoretical calculations.

This paper reports on the investigation of the possibilities of enhancing the formal e-learning process by harnessing the potential of informal game-based learning on social networks. The goal of the research is to improve the outcomes of the formal learning process through the design and implementation of an educational game on a social network and its integration with a learning management system (LMS) of an educational institution. As a proof of concept, a Facebook educational game that enables students to learn and test their knowledge was developed. Furthermore, the game was integrated with the Moodle LMS and the evaluation was performed within the e-learning system at the Faculty of Organizational Sciences, University of Belgrade. The results show that the application of social network edutainment in an e-learning ecosystem has a positive impact on both the students' results and their satisfaction with the learning process as a whole.

This paper discusses harnessing augmented reality for interaction with smart classrooms. Primary goal is to investigate possibilities of augmented reality applications within smart environments. Main characteristics and concepts related to augmented reality and smart environments were analyzed. As a proof of concept, an iOS mobile application was developed. The application is an editor for smart classrooms using augmented reality. Students and teachers are enabled to interact with smart classrooms via mobile devices. The smart classroom is implemented within learning ecosystem at Laboratory for E-business, University of Belgrade.

This paper describes a virtual laboratory designed for teaching the course Internet of things. The goal was to create an environment that would support interactive learning and provide students with the necessary hardware and software for creating their own projects. The designed virtual laboratory was developed at the Department for e-business, Faculty of Organizational Sciences, University of Belgrade. As a proof of concept, we present a project for smart watering system implemented within our virtual laboratory.

With rapid increase in the number of users, services, educational content, and required resources, educational institutions face new challenges in design and deployment of IT infrastructure for e-education. This chapter deals with defining and developing a model of IT infrastructure for e-learning by using cloud computing concept. The first challenge is adoption and implementation of digital identity management systems and the second is providing support for a system that would be able to use all advantages of federation systems for digital identities management. The experimental part of the chapter consists of a study directed towards the validation of the proposed IT infrastructure model for e-learning. Research was conducted in the Laboratory for E-Business at the Faculty of Organizational Sciences. The results of the research show that the implemented model of IT infrastructure enables the system of e-learning to be more efficient, flexible, and more economical.

The analysis of IT market in Serbia indicates an increase in exports of IT services. Consequently, the need for experts with competitive skills in modern information and communication technologies rises. International priorities related to the application of IT in business and science until the year 2020 include: e-education, cloud computing, mobile technologies, internet of things, ubiquitous and pervasive computing, social media, virtual reality, and big data. Designing environment for providing IT services in these fields can be an opportunity for the development of Serbian economy, because it does not require high infrastructural investments, only investments in education. This paper gives a proposal for leveraging higher education and lifelong learning in Serbia, with respect to the demands of the IT market.

Emission spectra and decay properties of the (4)G (5/2) level of Sm3+ ions in LaMgAl11O19:Sm3+ (LMA:Sm3+) have been measured as functions of pressure up to 100kbar at room temperature. Changes of the positions of three considered fluorescence lines (560, 606, and 643nm) under pressure are very small. The fourth one (594nm) is practically insensitive upon pressure and has a red shift rate (RSR) close to zero. Fluorescence lifetime for the 594nm line decreases non-linearly with pressure in the considered pressure range. Effect of the pressure on was described using a model which considered the change of the inter-ionic distance (r), ionic polarizability (), and material refractive index (n) with pressure. Calculated pressure-induced change of the lifetime is in good agreement with the experimental data. Insensitivity of the lines position upon the pressure, and small RSR, leads to conclusion that LMA:Sm3+ can be the base for a new generation of solid state lasers with numerous applications.

This paper presents a model for conducting Internet of Things (IoT) classes based on a web-service oriented cloud platform. The goal of the designed model is to provide university students with knowledge about IoT concepts, possibilities, and business models, and allow them to develop basic system prototypes using general-purpose micro-devices and a cloud and service infrastructure. The model was based on a cloud infrastructure deployed at the E-Business Department at the Belgrade University, and some implementation details are given. The model was tested and evaluated in a pilot course.

This article discusses the problem of using and delivering educational content from the Moodle learning management system to mobile devices. The primary goal of this study was to investigate the students' habits, motivations and technical possibilities in order to incorporate mobile-learning activities in the e-learning process. A mobile quiz has been chosen as an activity to be delivered on mobile devices. The developed mobile quiz application was integrated into Moodle. The application interface was tailored to various types of mobile devices aiming to foster mainstreaming of mobile technologies in e-learning. For the purposes of the evaluation, an experiment was conducted within the e-learning system at the Faculty of Organizational Sciences, the University of Belgrade. Data were obtained from the students who attended e-learning courses in the area of e-business. Research findings have shown that integration of the mobile quiz application into Moodle improves students' results and increases satisfaction and motivation for using mobile devices in their learning process.

In this paper, we describe a new graphical environment for learning continuous simulation. This open source software solution enables engineering students to learn and understand various real system models in the CSMP (Continuous Simulation Modelling Programme) language easily, and at the same time learn about the implementation aspects of simulation languages. The software provides efficient tools for creating, storing, and executing continuous system simulation models that are described with differential equations. The graphical block-diagram interface allows students to drag-and-drop predefined modelling blocks', connect them together and create different models of continuous systems. Further, we present an example of using the developed application in solving a typical continuous simulation problem. Finally, we present the results of the evaluation performed on a testing sample of 160 students of undergraduate course Simulation and simulation languages at the Faculty of Organizational Sciences, University of Belgrade.

This paper introduces an innovative model for harnessing cloud computing infrastructure within an e-learning ecosystem. The main goal was to design a scalable, reliable and secure IT environment that provides a plethora of e-learning services and seamless integration of the heterogeneous e-learning components through IaaS, PaaS and SaaS cloud service models. The e-learning services are tailored to foster courses for IT engineers in the areas of mobile technologies, social computing, Internet of Things and big data. The model was implemented and evaluated in the e-learning ecosystem of the E-business Lab, University of Belgrade.

The research area of this paper is the electronic employment in public services. This paper analyses the employment process in public services through the functioning of Internet labour market, social and professional networks and a model of e-employment. The preview of the model of e-employment and activities for employment in public services are given. The application of the proposed model enables electronic control, processing and reporting related to realization of all employment procedures.

This paper discusses the aspect of designing network infrastructure for e-learning private clouds. The aim is to build a comprehensive, stable, scalable, reliable and flexible infrastructure that will effectively support all models of deploying cloud computing services in academic environment. Main component of the infrastructure is a network organized in three logical layers: core, distribution and access. Functions of the access and distribution layer are integrated in the cloud. OpenFlow protocol was used as an interface for software switches in cloud. The implementation of the model and the system for network management in an educational institution are described in details. The developed infrastructure can host numerous services for learning and collaboration for both students and teaching staff

This paper presents development of model for interoperable e-payment systems based on ontologies and REA (ISO/IEC 15944-4:2007) ontological system structure. The study discusses referent models for information exchange and global standards for financial industry. Relations and interactions among payment systems of legal and physical entities on one side, and payment system of central bank on the other can be managed through standardized system structure, i.e. model and description of payment systems behaviour regardless of payment instrument that initiated transaction. The paper describes different components of interoperable systems: database objects, procedures, business logic objects, model of data for determining IO components, and user interface control.

This paper presents an approach for providing student relationship management services on cloud computing infrastructure. Main goal of the paper is to design reliable, comprehensive and cost effective infrastructure that enhances realization of educational and collaboration processes. Model of student relationship management based on cloud computing infrastructure is described in details. As a proof of concept, the model was implemented in the e-learning system of E-business Lab, at Faculty of organizational sciences, University of Belgrade. Results show that the implemented model contributes to better collaboration and communication between students and educational institution and increases performances of the educational process, as well.

In modern educational systems, the final outcome of the learning process heavily depends on providing learners with an access to the right information at the right time. An appropriate presentation and visualization of information can strongly influence the learning experience by allowing learners to explore an educational domain instinctively, gaining a better insight into its structure. The main goal of this paper is to enhance data management, visualization, and adaptation within an e-learning system. A model for semantic annotation of concepts present in learning management systems is presented, including the description of a structure of semantic applications that will utilize annotated resources to enhance data handling, browsing, searching, visualization, and adaptivity. The developed solution is based around the principles of modularity and independency among components.

The research area of this paper is an application of social media tools of in higher education. Social media can be described as Web 2.0 technologies and practices that are used for sharing content, opinions and experiences. The application of social networks, wikis and blogs enables improvement relations between the participants of the educational process. In this paper we present a model for application of social media in e-learning, developed in scope of Laboratory for e-business, Faculty of organizational sciences, University of Belgrade. The practical part of the paper describes the use of wikis, blogs and social networks, as a complement to the existing e-learning process, in a higher education institution. Integration of an edutainment Facebook application with Moodle learning management system is shown. The main goal of this paper is the improvement of quality of e-learning process through application of social media in higher education.

This paper describes a web-based environment for learning discrete simulation. The main goal of the paper is to foster the process of e-learning simulation by providing students and teachers with effective and comprehensive tools for creating, storing and executing discrete system simulation models. For these purposes the FONWEBGPSS application was developed and integrated into the e-learning system Moodle. The integration is implemented on three levels: users, processes and learning resources. The integration of users and processes is performed by synchronizing data in both systems. The integration of learning resources is performed by adjusting and implementing the IEEE LOM profile for learning simulation. In order to evaluate the impact of the proposed solution on the learning simulation outcome, research has been performed within the undergraduate course Simulation and simulation languages at the University of Belgrade. Research results indicate that students achieve better results in learning simulation when using FONWEBGPSS application integrated into the e-learning system than learning in a traditional way.

U ovom radu prikazan je jedan pristup prilagođavanju Felder-Silverman modela stila učenja za primenu u razvoju adaptivnih sistema elektronskog obrazovanja. Glavni cilj rada je poboljšanje postojećih kurseva elektronskog učenja razvojem metoda za adaptaciju na osnovu stilova učenja. Predloženi metod zasniva se na analizi podataka o studentima i primeni koncepta personalizacije u kreiranju elektronskih kurseva od strane nastavnika. Istraživanje je realizovano na Fakultetu organizacionih nauka u Beogradu, u zimskom semestru školske 2009/10 godine na uzorku od 318 studenata. Studenti eksperimentalne grupe su podeljeni u tri klastera, na osnovu podataka o njihovim stilovima učenja utvrđenih primenom prilagođenog upitnika Feldera i Silvermanove. Podaci o stilovim učenja prikupljeni tokom istraživanja koriste se za utvrđivanje karakterističnih grupa studenata, a zatim za klasifikaciju studenata u grupe. Klasifikacija je izvršena primenom data mining tehnika. U skladu sa rezultatima analize podataka, izvršena je adaptacija elektronskih kurseva. Nakon evaluacije, utvrđeno je da postoji značajna statistička razlika u rezultatima studenata koji su pohađali kurs adaptiran korišćenjem prikazanog metoda u odnosu na rezultate studenata koji su pohađali neadaptirani kurs., This paper presents an approach for adjusting Felder-Silverman learning styles model for application in development of adaptive e-learning systems. Main goal of the paper is to improve the existing e-learning courses by developing a method for adaptation based on learning styles. The proposed method includes analysis of data related to students characteristics and applying the concept of personalization in creating e-learning courses. The research has been conducted at Faculty of organizational sciences, University of Belgrade, during winter semester of 2009/10, on sample of 318 students. The students from the experimental group were divided in three clusters, based on data about their styles identified using adjusted Felder-Silverman questionnaire. Data about learning styles collected during the research were used to determine typical groups of students and then to classify students into these groups. The classification was performed using data mining techniques. Adaptation of the e-learning courses was implemented according to results of data analysis. Evaluation showed that there was statistically significant difference in the results of students who attended the course adapted by using the described method, in comparison with results of students who attended course that was not adapted.

Cloud computing is one of the fastest growing areas in the information and communication technology sector. Cloud computing is an area that can be viewed separately from the traditional Internet service due to its dynamic and flexible architecture. Cloud computing can also bring new value to adaptive e-learning systems. In this paper we present a model for implementing adaptive e-learning systems through cloud computing. The evaluation of the implemented environment has been done in an undergraduate course in Java programming at the Higher School of Professional Technological Studies in Sabac, Serbia.

This paper investigates possibilities of a social media application in improving student relationship management in higher education institutions. The main goal of the paper is to develop a system of metrics for measuring outcomes of social CRM in e-education. We propose a set of metrics for e-education processes, focusing on teaching, learning and communication through social media. The implementation of social CRM in e-Business Lab at University of Belgrade is presented

Student Relationship Management (SRM) is the systematic care of a business relationship between the university and students. A new vision of higher education system in which the student is the central subject opens up new learning opportunities that include customization and adaptation to students' needs and preferences. Student satisfaction can be increased in this way, and mutual trust will remain intense after graduation as well. SRM is often applied for improving quality of administrative process in educational institutions. However, SRM can also significantly improve teaching and learning process as well. This paper focuses on these aspects of SRM. In this paper we present a student relationship management model in e-education, based on cloud services. The model is based on an educational web portal that integrates e-learning system components, such as: learning management system, information management, communication and collaboration tools, notification system, e-learning process management, mobile learning services, social network services and others. Implementation of the model is based on the cloud computing infrastructure in Laboratory for Electronic Business at University of Belgrade. We use Moodle learning management system and SugarCRM for student relationship management. In the paper, we present teaching and learning process implemented in the described system, metrics for evaluation of the system performance and results of using the SRM system within regular activities.

Main subject of this paper are educational computer games in higher education. The first part of the paper describes e-education through basic concepts and terminology. Game as a component of e-education system is described through classification of computer games, methods and tools for game based learning. A method for integration of game based learning into Moodle system is proposed. Suggested method is based on a new methodical approach of teachers who create online course, as well as on applications of additional software tools and Moodle modules. Creation of educational gaming activities is described through software Hot Potatoes. In practical part of this paper, described model for blending game based learning into e-learning system is implemented in e-education system of Laboratory for e-business at Faculty of organizational sciences, University of Belgrade. Edutainment activities have been conducted as a part of educational blend for two school years. Gathered data is analyzed for each generation of students, and comparatively for both generations. Results show that application of edutainment activities increases students' results at final exam.

In this paper, we describe an approach to providing adaptivity in e-education courses. The primary goal of the paper is to enhance an existing e-education system, namely Moodle LMS, by developing a method for creating adaptive courses, and to compare its effectiveness with non-adaptive education approach. First, we defined the basic requirements of a course adaptation and the steps required to implement it. Based on the collected data, we identified the characteristic groups of students and then classified all participating students into these groups. The final adaptation of courses was performed in the distance education system of the University of Belgrade, in the Laboratory for e-business, Faculty of Organizational Sciences. Findings of the experimental study showed that the students' effectiveness and achievements in learning were higher when they attended courses adapted using the described method, in comparison to the non-adaptive e-learning courses.

Cloud computing is an area of computing that refers to providing customers with highly scalable IT capacities as a service via the Internet. It is an abstract, scalable and controlled computer infrastructure that hosts applications for end-users. Services and data coexist in a shared and dynamically scaled set of resources. E-education systems provide its' users with various services: learning management system, services for scientific research, digital library, academic info services, document management system, decision support systems, services for communication and collaboration, etc. Availability of services depends on the role of the user. In e-learning systems, there are several standard user roles, such as student, teacher, course creator, administrator, etc. In this paper we present an application for integrated resource management in an educational cloud. The application is implemented and used at Laboratory for Electronic Business at University of Belgrade. It is based on web services technologies. The application enables integration of three important components of cloud based e-education infrastructure: Moodle learning management system, directory service LDAP and OpenNebula tool for managing cloud computing infrastructure. The application enables synchronisation of user accounts and privileges managed within Moodle and LDAP and assigning cloud resources and services to specific users. Availability of services which a student can access depends on the Moodle courses he or she is enrolled in.

This paper proposes the Business to Business (B2B) integration framework in the field of traffic safety. The proposed framework is based on integration Platform-as-a-Service (iPaaS) that combines information integration and portal integration in the cloud computing technological environment. Information integration is carried out in a common SQL Azure database. The portal integration is enabled with Windows Azure hosted services. The proposed model was implemented in a case study of integration of information systems that are used for the railroad crossings management in the Serbian Railways.

As a result of the growing number of services provided by e-governments. the information resources in e-government systems are becoming increasingly complex and vast. Therefore, structuring information, so it can easily be understood and further used is an emerging topic. This paper proposes a model for structuring e-government information resources using faceted taxonomy. The concept of faceted taxonomy represents a set of taxonomies, each one describing the domain of interest from a different, preferably orthogonal, point of view. This model would facilitate the understanding of relationships between different pieces of information in the system and therefore, improve the efficiency of use of the information resources in the system.

Introduction of e-business in government necessitates the framework for secure information handling. This means that all necessary information protection measures have to be in place in the e-Government systems, so that the possibility of the information loss or unauthorized change can be minimized. Therefore, it is necessary to develop solutions and define procedures and measures which will secure information communication and create the mechanisms for their implementation. One part of the information protection solution is the implementation of Public Key Infrastructure. This paper deals with the Public Key Infrastructure construction methodology. The example of the PKI construction is developed and implemented in the Statistical Office of the Republic of Serbia.

This paper proposes a new web-based environment for learning discrete simulation. FONWebGPSS is an application that provides a web-based interface for creating, storing and executing discrete system simulation models in the GPSS language. The primary goal of the paper is to improve the process of learning simulation by integration of the FONWebGPSS in the existing e-learning system, Moodle. Evaluation of the developed integrated solution for learning simulation has been performed within an undergraduate course, Simulation and simulation languages, at the Faculty of Organizational Sciences, University of Belgrade on a testing sample of 208 students divided into an experimental and a control groups. The research results show that students achieve better results on the final test when using the FONWebGPSS application integrated into the e-learning system in comparison with the standard desktop version of the GPSS.

The main subject of this paper is the implementation of the CRM (Customer Relationship Management) concept in the field of electronic education. Different models of CRM systems with the possibility of their application in educational institutions are analyzed in this paper. The application of CRM systems in improving communication and relationships with students involves collecting lots of information about students and their activities during the studies. A large amount of data stored in the database requires reliable systems that guarantee the protection of students’ privacy and prevention of data abuse. The paper presents the student relationship management model in e-education, based on the Moodle LMS system in the Laboratory for Electronic Business at Faculty of Organizational Sciences in Belgrade. The implementation of the CRM model in e-education is fully described and based on the previous analysis and discussion.

This paper offers an analysis of the situation and perspectives in the use of social networks as social media to improve the relations among the participants in education. Social networks provide a social interaction and networking among the participants in the educational process. They represent a tool for networking and communication of persons who are in search of new trends in education, business and entertainment. Services and applications of the social network analysis are described. Demographic data, applications for users and social network marketing are shown for Facebook, as well as the example of Facebook marketing on the portal for e-education in the scope of the Laboratory for e-business. Trends of social network application in distance education are considered, too.

In this paper we present an approach to developing web portal for adaptive e-learning. Educational web portal is single access point to all relevant information, resources and applications in the education process. Web portal integrates different functionalities and services for adaptation of e-learning courses with existing learning management system Moodle. Integration includes: educational web portal users, information, processes and software platforms used in e-learning system. We describe architecture of the portal for adaptive e-learning, technologies, design and techniques applied in implementation of portal's key components.

In this paper, we present a model of cloud computing based infrastructure for e-education in a university level. Model is implemented at Faculty of Organizational Sciences, University of Belgrade. One of the basic problems in developing a model of infrastructure and services for e-education is how to provide scalability and reliability of educational applications and software. The best solution that information and communication technologies offer is based on applying the cloud computing concept. Cloud computing is an area of computing where IT scalable capacity is provided in the form of services delivered via the Internet. There are three approaches to deploying cloud computing concepts depending on type of services delivery: Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Service (SaaS). Developed model incorporates learning management system (LMS), services for scientific research (digital library, academic info services, document management system, etc.), decision support system, services for communication and collaboration, etc. Model is implemented in Ubuntu Enterprise Cloud (UEC) environment powered by Eucalyptus software platform. Described services are implemented within the cloud and tested in regular teaching activities in Department for e-business of the Faculty of Organizational Sciences. Analysis of performance has been conducted. Results suggest that the introduction of cloud computing into e-education is feasible and it can greatly improve the efficiency of system and achieve a win-win situation for both students and teachers.

In this paper, we describe a new approach for teaching discrete event simulation via web. Main goal of the paper is to enhance existing simulation courses on e-learning platform, by developing web environment for learning, creating and testing discrete event systems models. Proposed approach is based on FONWebGPSS - web application designed and implemented in Laboratory for simulation, University of Belgrade. We provide detailed description of FONWebGPSS architecture and key components. Further, FONWebGPSS is fully integrated in e-learning management system Moodle. Additionally, we illustrate a practical example of using FONWebGPSS in solving a typical discrete event simulation problem.

Main subject of this paper is implementation of Customer Relationship Management (CRM) concept as a cloud service in e-education system. The paper presents a student relationship management model in e-education. Implementation of the model is based on the cloud computing infrastructure system in Laboratory for Electronic Business at Faculty of Organizational Sciences in Belgrade. Implementation of application and services is achieved using virtual machines that serve on demand. Further additional services are developed and hosted on cloud computing infrastructure.

U ovom radu je prezentovan jedan pristup za kreiranje adaptivnih elektronskih kurseva. Glavni cilj rada je razvoj metoda za kreiranje adaptivnih elektronskih kurseva u Moodle sistemu za elektronsko obrazovanje. Prezentovani pristup se zasniva na prilagođavanju postojećeg sistema, a ne na razvoju potpunho novog rešenja. U radu su definisani osovni koraci za adaptaciju elektronskih kurseva. Podaci prikupljenih tokom istraživanja koriste se za otkrivanje specifičnih grupa studenata, a zatim za klasifikaciju studenata u grupe. Za analizu prikupljenih podataka korišćene su tehnike poslovne inteligencije. U skladu sa rezultatima analize izvršeno je prilagođavanje kurseva karakterističnim grupama. Adaptacija je izvršena u sistemu za elektronsko obrazovanje Laboratorije za elektronsko poslovanje Fakulteta organizacionih nauka. Nakon evaluacije, zaključeno je da su rezultati studenata na adaptivnom kursu bolji od rezultata studenata na neadaptivnom kursu., The paper presents one possible approach to creating adaptive e-education courses. The primary goal of the paper is to develop a method for creating adaptive courses within the e-learning management system Moodle. The approach the authors have chosen to present is based on adjusting the existing e-education system, rather than developing a completely new solution. The basic requirements and steps in the course adaptation are defined. Data collected in the research was used for discovering characteristic groups of students, and then classifying students into these groups. In the analysis of the collected data the business intelligence techniques were used. In accordance with the research findings, the final adaptation of courses was carried out in the real system of distance education at University of Belgrade, in the Laboratory for e-business, Faculty of Organizational Sciences. After evaluation, it was concluded that the students’ achievements were higher when they attended courses adapted using the described method, in comparison to the nonadaptive e-learning courses.

U ovom radu biće predstavljen model infrastrukture sistema za učenje na daljinu baziran na konceptu cloud computing-a. Cloud computing predstavlja oblast računarstva u kojoj se skalabilni informatički kapaciteti obezbeđuju u vidu usluge isporučene putem Interneta. U praktičnom delu rada opisan je deo sistema za e-obrazovanje implementiran primenom ovog koncepta. Predlaže se i rešenje za realizaciju laboratorijskih vežbi iz predmeta Simulacija i simulacioni jezici na Katedri za elektronsko poslovanje i upravljanje sistemima Fakulteta organizacionih nauka. Ovo rešenje se zasniva na opisanom modelu infrastrukture sistema za učenje na daljinu., In this paper we present a model for infrastructure of e-education system based on the concept of cloud computing. Cloud computing is an area of computing where IT scalable capacity is provided in the form of services delivered via the Internet. In practical part of the paper we describe e-education system developed using this concept. In the paper we describe a solution for realization of laboratory exercises in scope of the course Simulation and simulation languages at Department for e-business and system management of the Faculty of Organizational Sciences. This solution is based on the described model.

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.