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Volume 11, Number 2
CRM AND CUSTOMER DATA: CHALLENGES OF CONDUCTING BUSINESS IN DIGITAL ECONOMY
MIhalj BAKATOR, Dejan ĐORĐEVIĆ, Milenko ĆEHA, Srdjan BOGETIĆ
Abstract: Enterprises are facing difficulties in achieving and maintaining competitive ability amidst globalized markets. In the modern business environment, an effective CRM is an imperative for retaining customers. As CRM systems rely on customer data, it is important to secure data integrity. This paper thoroughly analyses the challenges of enterprises, CRM and customer data. The main goal of this paper is to provide an overview of existing literature and business practice in the domain of CRM. In addition, a model for improvement of CRM is developed. The model is based on the results of conducted review, and as such, it presents an approach towards enhancing CRM systems while taking into consideration the integrity of customer data.
Keywords: CRM; Customer data; Globalization; Digital economy; Data security.
INFLUENCE OF ENTREPRENEURS ON JOB SATISFACTION AND ORGANIZATIONAL COMMITMENT OF EMPLOYEES
Jesa KREINER, Dragana SAJFERT, Svetlana ANĐELIĆ, Nikola JANČEV, Milorad ŽIVKOVIĆ
Abstract: In this paper, we analyze reliability, correlations, regression of employee obligations, compare employee regression, job satisfaction regression, and hierarchical regression analysis. As techniques for comparison of entrepreneurs and employees are significant for analysis of positive correlations between the determinants, we used 36 independent samples and 210 individuals. The findings reveal that: (1) The results of the research confirmed the existence of a statistically significant positive correlation between the determinants of job satisfaction and organizational commitment on one hand, and the work of entrepreneurs, on the other; (2) The results of the survey compare the relationship between entrepreneurs and employee job satisfaction and organizational commitment, adding a significant increase in the importance of the construct; (3) Entrepreneurship has a relative correlation in relation to job satisfaction, and organizational commitment, and thus increases the scope of tasks and efficiency of entrepreneurs; (4) Entrepreneurs show dominance over employee satisfaction and organizational commitment, when they predict the success of a group or organization and organizational civic behavior. We recommend that future researches examine the relationship among entrepreneurs and their relationship with employees, as well as job satisfaction and organizational commitment, in order to potentially compare them.
Keywords: Entrepreneurship; Job satisfaction; Organizational commitment; Efficiency of entrepreneurs.
EVALUATION OF PRODUCT QUALITY WITH DECIBELS
Branko POPOVIĆ
Abstract: In modern quality engineering, the quality of process results, the quality of measuring instruments, and the quality of completed processes are considered according to their quality characteristics. However, in traditional engineering, only the quality of measuring instruments and the quality of completed processes (precision or accuracy indices PCI, PPI) can be successfully defined, while the quality of process results (semi-finished product, product, software, service) can only be described (has or does not have the required quality), good or bad quality, better or worse quality). In the modern consideration of quality, the quality of process results is now defined by the number of decibels [dB], according to the discovery of the genius Japanese scientist Genichi Taguchi (1924-2012), with the methods of Robust Technology Development and Standard Ratio (S/N). This paper discusses definition of the quality of process results with one input variable and continuous characteristics with three illustrative examples.
Keywords: Quality engineering; Quality of process results; Continual characteristics.
Bulent TUTMEZ
Abstract: : The focus was on the pollution problem in Serbia and the relationships between CO2 emitted into air from industries and air quality indicators such as particulate matters (PM2.5, PM10), nitrogen and sulfur oxides (NOx, SOx), and volatile organic compounds were analyzed. To identify the dependencies, both parametric and nonparametric statistical learning-based evaluation algorithms were taken into consideration. Both the model structures produced satisfactory estimations with high accuracy levels. As a result of the model interpretation, PM2.5 has been recorded as the main indicator to explore the variability in CO2 concentrations. The implementations exhibited that interpretable machine learning can provide meta-data and sufficient information for making black-box air quality system more explainable. Thus, the practiced modelling tools, the provided interrelationships as well as the new information could be considered by the national authorities within a computational environmental management strategy.
Keywords: Greenhouse gas; Air pollution; Statistical learning; Regression; Variable importance.
MODERN TECHNOLOGIES INFLUENCE ON PROJECT SUCCESS FACTORS IN IT SECTOR OF SERBIA
Tamara ZORIĆ, Vesna MAKITAN, Eleonora BRTKA, Simo MRĐEN
Abstract: Given the technological advances and the recognized importance of the application of technologies in project management, the question arises whether the technologies of Industry 4.0 can solve the problem of failure of information technologies (IT) projects. This question is the main motivator for writing this paper and conducting research on this topic. This paper describes a research that was conducted with the intention of examining the extent to which modern technologies can contribute to the success of IT projects. The research shows the extent to which modern technologies are applied in project management in the IT sector of Serbia, as well as the extent to which experts believe that these technologies have a positive impact on project success, analyzing the issue through their impact on success factors. This research provides insights that can contribute to a better understanding of modern technologies and their application in practice.
Keywords: IT projects; IT project management; Project success factors; Industry 4.0 technologies.
COLLABORATIVE ECONOMY AT THE LEVEL OF THE EUROPEAN UNION: STATE AND PERSPECTIVES
Žarko ĐORIĆ
Abstract: On the whole, the collaborative economy, as a recently emerging and fast-growing phenomenon, involves the exchange of resources using an online platform to produce, distribute and provide new services. Given the strong influence on shaping future labor market policies, labor relations, education and training, as well as digitalization, there is no doubt that the collaborative economy is one of the hot topics on today’s political agenda, not just in Europe, but worldwide. It could be freely said that the collaborative economy in the European Union is a very current topic and numerous discussion papers are circulating about it, which all point to the general conclusion that this new model has not been developed in a meaningful way in this part of the world. In that sense, the primary goal of this paper is to analyze the mechanism of functioning of the collaborative economy, with special emphasis on the possibilities and limitations of its development at the EU level, applying scientific methods of systematization and analysis. The paper shows that the collaborative economy has not yet experienced its full valorization at the EU level, and at the same time presents conclusions and recommendations regarding its development potential in this part of the world. The paper suggests that the European Union has a positive attitude towards the collaborative economy, considering it an opportunity, not a threat, although there is a huge space for further economic expansion of this business model (in terms of employment, growth, competitiveness, sustainability and transition to the circular economy), as well as for a substantial shift in the field of its regulation in order to avoid serious bifurcation. In order for the collaborative economy at the EU level to take major steps forward in the forthcoming period, the most important thing is to establish a clear and dynamic legal environment, in order to avoid the risk of fragmentation of the single market and unfair competition.
Keywords: Collaborative economy; European Union; Regulation; Lasting sustainability; COVID-19.
REVIEW OF METHODS FOR MIGRATING SOFTWARE SYSTEMS TO MICROSERVICES ARCHITECTURE
Aleksandra STOJKOV, Željko STOJANOV
Abstract: Majority of software systems in business use, known as legacy systems, have monolithic structure hard to maintain and upgrade with new features. The most common option to overcome this situation is reengineering of existing software systems, which can be perform in different ways and with different outcomes. One of the recent most popular approaches is migration to microservices architectures, which makes distribution of software functionalities in small and independent units possible. Each unit, called microservice is self-contained and independent, which makes system manipulation and modification easier. Several methods for migration to microservice architecture have recently been proposed. This article presents a review of methods for migrating existing system towards microservices. In addition, this article presents software artifacts affected by migration methods and used algorithms. Implications and benefits of the presented study, as well as validity issues are discussed, followed with concluding remarks and future research directions.
Keywords: Microservices; Microservices architecture; Software architecture; Reengineering; Migration methods.