Observing new concepts in information technology, we pay attention to its impact on more effective supporting human and organisational knowledge. Knowledge management (KM) is one of such promising and intriguing concepts. Its goals and infrastructures are defined in different ways, therefore interdisciplinary approach seems to be useful. We have presented a short survey of theoretical concepts in management, marketing and decision theory, which were adapted by the theory of KM. On the other hand, knowledge validation (KV), defined as two procedures: verification and evaluation any form of knowledge, is aimed on assuring its quality. The paper discusses the crucial interrelationships between knowledge validation and management. The main goal of this work is positioning KV activities in the context of knowledge management process, emphasising usability of KV techniques during the whole process.

Abstract. Knowledge granularity, usually identified with the size of knowledge granules, seems to be real challenge for knowledge consumers as well as for knowledge creators. In this paper, relationships between knowledge granularity as a result of different ways of a knowledge representation are considered. The paper deals with the problem of developing knowledge grid in the context of encapsulation of knowledge including different dimensions and measures. The origin of the problem is discussed in the first section stressing flexibility of knowledge interpretations. Concepts of knowledge granularity (also from formal point of view) are presented in the next section. The nature of well represented knowledge is considered in the next chapter with references to granularity of knowledge. In the last part of the paper the question of formulating knowledge granularity in the context of knowledge grid concepts is discussed. This document comprising guidelines for authors is divided into several sections.

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In this paper a study program of "Business Informatics" at the Wroclaw University of Economics, Poland, is presented. The structure of subjects taught and organization of the curriculum for Bachelor and Master levels are detailed. The education model is presented along with descriptions of profession-oriented modules. The authors discussed also a comparison of the new program of Business Informatics and a previous one, called "Informatics and Econometrics" that was common and official program of applied informatics in business schools in Poland. The perspectives and the constraints of program implementation of the new field of study are indicated.

The paper addresses the problem of dynamic analysis of barriers to entry in a chosen market. The role and importance of such analysis in enterprise strategy is explained. As a solution to the problem, the use of an intelligent tool is proposed. The tasks that such a tool should be able to perform and the expectations connected with such a tool are pointed out. Next, an architecture of an intelligent tool is proposed. The main components of the tool are presented and discussed. Problems to be solved during construction process of the tool are also pointed out. The paper also shows direction for future research concerning dynamic analysis of barriers.