Abstract: Over the last few years, interest in renting Cloud Infrastructure as a Service (IaaS) has increased and this has led to the development of many new solutions of this class. The competition on this market resulted in serious changes in the business strategies of the providers of IaaS cloud services. We are witnessing an incredibly dynamic development of the IaaS market. This requires the thorough analysis of the current possibilities of the providers of such products and the direction in which they will be developing in the near future.
The objectives of the present article are to analyse the characteristics, advantages and disadvantages of the IaaS solutions of the world’s leading providers of cloud services and to offer recommendations with reference to choosing an effective cloud configuration.
To achieve the set goals, the study has used the Gartner’s Magic Quadrant research methodology; has collected and summarised data from the studied providers of IaaS cloud services and, based on these results has outlined parameters that can be used to analyse, compare and assess the leading world IaaS solutions.
Abstract: E-learning systems (EL) have established themselves as a key management instrument in business strategies for human resource management, for the improvement of the efficiency of processes for professional staff development and for the development of corporate knowledge.
The aim of this article is to present some of the new concepts for EL – an ecosystem for EL, collaborative learning, lifelong learning, ubiquitous learning, EL as a method for knowledge creation and the generation of collective intelligence. Furthermore, it aims to outline the potential of the key information technologies – mobile technologies, Web 2.0 and cloud services - for the development of efficient strategies and models for EL usage, its transition into an efficient and effective business practice and its establishment as a leading, electronically implemented activity (e-activity). To achieve the objective of the research article the following methods have been used – logical methods such as analysis, synthesis and comparison, and theoretical research methods such as abstracting and summarizing. The main empirical method applied is that of modelling.
Abstract: Present – day mobile and electronic payment systems, like all innovative solutions, do their best to meet the requirements of the business by being in line with its technological capacity. Online payments have a number of benefits not only for the banks and institutions that implement them but also for the clients and sales companies that use them to do their business.
The purpose of the article is to outline the features of mobile and electronic payment systems that permit them to be one of the most promising and rapidly developing means of payment in Bulgaria. The study will also analyse their strengths and weaknesses and will clearly define the opportunities and threats of their application. This will be accomplished by taking into account the current political and social conditions in Bulgaria.