Topological Approach to Supply Chain Resilience Analysis

The features of the study of the resilience of digital service supply chains as a complex interaction between cloud providers, telecommunication networks, edge delivery systems, authentication services and user devices are presented. The relevance of the problem is substantiated by a number of int ernational standards (ISO/TS 22318, ISO 28002), US federal recommendations (NIST IR 7622, SP 800-160) and European regulations (NIS2 Directive, DORA). The methods of formally representing supply chains for research using graph methods, methods of queuing theory, stochastic methods, as well as representing supply chains in the form of dynamic equations are considered. It is shown that structural analysis can be effectively carried out using the theory of topological spaces.