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PROJECT RISK MANAGEMENT IN IRANIAN SOFTWARE PROJECTS
Ali Reza AFSHARI, Vladimir BRTKA, Melita ĆOĆKALO-HRONJEC

Abstract:Many Software development organizations suffer chronic problems of cost overruns, schedule slips and projects that do not meet the originally specified functions in almost all software projects. This study is commenced by reviewing existing risk management models. Thereafter, a survey that involved software project managers in Iran was conducted to gather empirical data about the practice of risk assessment. Thirty Software Project managers participated and were interviewed. Structured questionnaires were used to capture information. Observation made from the study show that in Iran, risk assessment is poorly practiced and many projects do not yet practice systematic risk assessment. This is because 83% of software project managers implicitly assess risks and the same percentage (83%) of them uses unstructured approaches, poor risk identification and analysis techniques. It additionally shows that risks are not documented and experiences not properly utilized. This has led to recurring problems. The conclusion drawn indicates that Iran’s software project managers need to start assessing risks using proper approaches. Review of existing models showed that these models are complex and may not help address the existing shortcomings. This study proposes a risk assessment framework, which helps managers to simply start assessing, documenting major risks, estimating risks using an objective approach that is based on frequently occurring risks to project likelihood of a risk occurring and subjective approach where objective approach is not applicable. It also supports qualitative risk estimation technique using prearranged risk estimation matrices and is supported by a tool that collects and stores risk data for analysis and improvement purposes.
Keywords: Project management, Software projects, Software project risk, Risk assessment, Project risk management

LEAN STARTUPS WITH INDUSTRY 4.0 TECHNOLOGIES: OVERCOMING THE CHALLENGES OF YOUTH ENTREPRENEURSHIP IN SERBIA
Mihalj BAKATOR, Dejan ĐORĐEVIĆ, Dragan ĆOĆKALO, Milan NIKOLIĆ, Miloš VORKAPIĆ

Abstract: Youth entrepreneurship is important for reducing youth unemployment rates and it overall contributes to economic growth. The main idea of this research is to determine the barriers and challenges that young entrepreneurs face in Serbia. The paper analyzes literature in this domain, and compares the status of youth entrepreneurship and entrepreneurship overall between Serbia, the EU and the US. Furthermore, a theoretical model is developed that includes the application of Industry 4.0 (I4.0) technologies and lean startup approach. The results indicate that taxation regulation and the lack of financial support for new startups are the main barriers that the young face in Serbia. In addition, the lack of adequate entrepreneurial education creates difficulties, and demotivates potential entrepreneurs. Therefore, it is necessary to introduce or modify existing regulatory laws and introduce effective financial support for new enterprises.
Keywords: Youth entrepreneurship, Industry 4.0, Lean startups, Serbia.

CREATING THE MODEL FOR THE IMPLEMENTATION OF MARKETING ATTRIBUTES WHICH DETERMINE DOMESTIC ENTERPRISES COMPETITIVENESS
Snežana BEŠIĆ, Cariša BEŠIĆ

Abstract: Global market and establishing new competitive relations require a new approach to business organization management, both in the conceptional and organizational sense. Modern organizations that are actively and continually applying modern management methods and techniques have significantly better chances to strenghten their competitive ability on the global market and to take a stable market position with the perspective for further market growth. Therefore, it is necessary for domestic enterprises to implement those management techniques which emphasize long-lasting orientation towards competitiveness – relationship marketing, business quality standardization, as well as other management techniques based on knowledge. Implementation of modern management techniques is an essential precondition for a successful business performance of domestic enterprises. Misunderstanding of marketing is typical for transition economies. Domestic business organizations have to use foreign business experiences in the process of business internationalization, which means that they have to apply actively the concept of integrated marketing. This paper provides an overview of reserch results regarding the managers' attitudes of domestic companies about the need of improving the marketing practice. Also, the overview of the model for applying the marketing attributes which determine the competitiveness of domestic companies has been provided.
Keywords: Marketing, Competitiveness, Global market, Management, Knowledge, Model.

USABILITY OF OPEN-SOURCE HARDWARE BASED PLATFORM FOR INDOOR POSITIONING SYSTEMS
Dalibor DOBRILOVIĆ, Dejan PETROVIĆ, Milan MALIĆ

Abstract: The application of indoor location systems (also known as indoor positioning systems, IPS) has significantly increased in the past decade. Those systems find their role in the broad range of possible implementations, especially in the applications in the area of resource management and location tracking. Their applications can be in safety management, material, construction, and inventory management. Since, those systems are designed for indoor and closed areas where GPS, GLONASS, and other navigation systems are not applicable, a different approach should be used to determine the location. This paper presents a brief overview of indoor localization technologies and methods. The focus of this paper is on RSSI based methods for positioning. The contribution of this paper is in analyses of usability of platforms built on Arduino/Genuino development boards and similar devices and open-source hardware for usage in RSSI based indoor positioning systems. The presented platform is designed and evaluated with the two experiments, with two different technologies.
Keywords: Open-source hardware, Indoor positioning systems, RSSI, Resource management, Location tracking.

DETERMINATION OF PERSONALITY TRAITS AND CHARACTER OF LEADERS, THEIR SELECTION AND EFFICIENCY IN THE TEXTILE INDUSTRY
Jesa KREINER, Dragana SAJFERT, Edit TEREK, Nikola PETROVIĆ

Abstract: The approach to management as a set of specificity means is that organizations will work better if people in leadership positions have certain traits. Practical but essential task of leaders is to create new approaches and find new areas to explore. The hypothesis underlying this procedure is that the personality traits of leaders have a major impact on increasing their effectiveness and efficiency in the textile industry in Serbia. In the study, the results were given for the age structure, professional structure of the leaders, social origin of the leader, the leader position in society, the success of the work of managers, the importance of some roles of managers. Knowledge and skills are acquired and developed through theory and practical experience, while some specific skills are a starting feature that an individual has or does not have. A leader is a profession that requires a person to possess certain character traits to be successful, in order to successfully carry out the tasks.
Keywords: Personality traits, Selection, Efficiency, Leader, Manufacturing.

USING TAGUCHI'S CONTRIBUTION RATIO AND PARETO DIAGRAM IN IDENTIFICATION OF INFLUENTIAL FACTORS IN EXPERIMENTS: CASE STUDIES
Zorica A. VELJKOVIĆ, Vesna K. SPASOJEVIĆ BRKIĆ, Damir ĆURIĆ, Slobodan LJ. RADOJEVIĆ

Abstract: This paper considers the usage of Taguchi's contribution ratio as well as an adjusted Pareto diagram for determining the size of influential design factors in experimental design on output values in order to determine the best combination of input factors, as well as factors that can determine output. Two case studies that cover extreme examples are presented in that aim. The first case study examines one input workspace design distributed on tree experimental designs defining space coordinates. Every design has several output values that were measured. The second case study presents two experiments regarding injection of plastic molding process, with same input factors at parts which are different in material and dimensions with geometric deformations as output. It was shown that different experiments lead to different results, of which one is acceptable, while other is useless for further examinations. Accordingly, this paper gives guidelines how to use Taguchi’s contribution ratio and Pareto diagram effectively in determination of influential factors in experiments.
Keywords: Design of experiments, Taguchi's orthogonal arrays, contribution ratio, Pareto diagram, Crane cabin space, Plastic injection molding.

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