Shushura O. Methodological foundations of information technology construction for automation of complex systems management on the principles of fuzzy logic

In the paper the actual scientific and applied problem of theoretical substantiation and development of methodological foundations of information technologies development was solved to improve the quality of functioning of objects with a complex structure by automating the processing of information and management based on fuzzy logic using the membership functions of several arguments. The method of conceptual modeling of subject areas of the problem of fuzzy control, which formalizes variable tasks, their characteristics and relationships between variables, is developed. Based on the conceptual model, the method of fuzzy control automation, which considers the constraints on the control variables formalized using the membership functions of several arguments, is presented. Approaches to the formation of membership functions of several arguments are developed, and the defuzzification procedure is adapted for their use. The method of fuzzy logic output based on formation and bypass the questionnaire graph is proposed. In order to implement the developed methods, the structure of fuzzy control information technology is presented. The models of the databases and knowledge-base structure and algorithms of information processing are developed. The results of the work are used in automation tasks of specific objects management.