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Objectives The process of managing complex dynamic objects and systems is inevitably connected with the problem of the effectiveness of providing qualitative support information for making managerial decisions. The creation and application of an information system (IS) makes it results in a need to evaluate its effectiveness. Methods The article presents a methodology for evaluating the effectiveness of information systems in solving problems related to the management of complex dynamic objects. The content of the functional information system quality criteria is specified. Results Efficiency and quality indicators of an information system oriented towardsthe analysis of data related to information processing problems are substantiated. It is suggested that the necessary and sufficient condition for evaluating the effectiveness of an information system is the dimensionality of its indicator. A comparative analysis of variants of the solution is presented on the basis of their direct ranking, taking into account the significance of the scalar integral quality indicator. The transition to a vector indicator, whose elements are partially derived from the system’s own quality indicators, each of which can have an independent value for the subsequent level of the hierarchy, is indicated. Conclusion The need to take into account the partial indicators leads to specific methods for analysing and synthesising systems on the basis of a multi-criteria approach based on the state space concept. The content of the quality criteria for the information systems is specified in the article. A developed methodology for evaluating the effectiveness of information systems in solving problems relating to the management of complex dynamic objects, based on multi-criteria optimisation, is presented. Thedeveloped generalised information system quality indicator is justified. On the basis of the state space concept, it is possible to move away from the generally unsuitable scalar integral quality criterion of information systems to the vector of eigenvalues.

METHODOLOGY OF EVALUATING THE EFFICIENCY OF INFORMATION SUPPORT FOR DECISION-MAKING IN THE MANAGEMENT OF COMPLEX DYNAMIC OBJECTS