АbstractThe purpose of this article is the analysis of leading European research in the fi eld of knowledge visualization from the point of view of the accumulated theoretical base, practice of application, problems, and trends.The need for digital business transformation for survival in the era of high-speed, mobile intelligent applications and big data has become apparent. However, understanding and interpretation of information can be performed only by humans. Modern managers cope with information "explosion" through visualization. Visualization helps them to understand, to compress and to demonstrate the ocean of numbers, words, and ideas. The number of works devoted to the theme of visualization is growing every year. There are numerous studies on the visualization of networks and relationships, and visualization of communication with a consumer. Fewer articles have been devoted to the visualization of knowledge in the implementation of business practices. At the same time, scientists are examining 1 This work was supported by the Russian Science Foundation MODELING OF SOCIAL AND ECONOMIC SYSTEMS BUSINESS INFORMATICS No. 3(41) -2017 8 one specifi c area of application of visualization and only a few contribute to the theory of the subject and study it in a versatile manner. The latter include the works of researchers from the University of St. Gallen (Switzerland), which we call in this article the St. Gallen School.We propose systematization of the following basic stages of research formation of the aforementioned School: 1) the preliminary stage, 2) the stage of empirical data accumulation, and 3) the stage of theory development. The School's contribution to the theory and practice of management was analyzed. Its contribution to theory includes the classifi cation of visualization techniques, a description of visualization use in business, the development of the boundary objects theory, as well as a detailed description of experimental studies. Contribution to business practices means implementation of educational projects and the development of new visual models. The fragmented nature of research is identifi ed: theoretical work is focused on how several visual models infl uence the implementation of certain business practices; empirical work often describes consulting projects, but do not provide an understanding of how to apply visualization techniques when there is no researcher-consultant.Based on our analysis of the literature, we demonstrate that the major trend in information processing is focus on knowledge representation based on data, not data as such. The challenging areas related to applied research methods are highlighted as follows: lack of consistency, and lack of distinction between the concepts of "data visualization" and "knowledge visualization". Thus, there is a need to distinguish visualization of knowledge in a separate area of study.

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The relevance of classical strategizing methods decreases in the era of a rapidly changing world, but this set of methods can be e panded through a variety of e ible modeling techni ues from other elds. Opera ons research, enterprise modeling, nowledge engineering, and ar cial intelligence have poten al to enrich strategizing process. These disciplines have generated a large number of suppor ng methods. We provide a classi ca on of the modeling methods by the degree of formaliza on and propose a conceptual framewor for the method choice.

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