Brezhniev I. A methodology of information technology for safety assurance of critical energy infrastructures

The object – critical energy infrastructure and information and control system safety assurance processes during development and application stages; The goal - critical energy infrastructure and information and control system safety assurance through development of methodological basis and information technology (IT);methods – system analysis, theory of reliability and safety of complex systems, fuzzy and probabilistic modelling. Results - an urgent applied scientific problem of development of information suppport of critical energy infrastructure through development of methodological basis of information technology of critical energy infrastructure safety assessment and assurance considering emergent risks under uncertainties. Novelty - the matrix safety model, the method of integration of priori and posteriori safety analysis results, the safety assessment method considering the types of emergent risk were developed for the first time.The methodology of critical infrastructure safety assurance, the method of parallel-sequential safety assessment, the method of safety assurance by selection of diverse system were imporved. The logical-linguistic safety model, the method of fuzzy evaluation of multilevel degradation, hybrid method of safety assessment, the method of safety assessment considering the reliability of its systems (subsystems), safety assurance method considering emergent risk were further developed.The degree of deployment - the research results were introduced at six enterprises and educational organizations. The scope – information and control systems for critical application.