Structured Reasoning for Socio-Technical Factors of Safety-Security Assurance

Abstract

Current research presents several approaches to safety-security technical risk analysis. Indeed, many safety standards now have the requirement that security must be considered. However, with greater knowledge of what makes assuring both attributes in an industrial context difficult, it becomes clear that it is not just the technical assurance that is challenging. It is the entirety of the socio-technical system that supports assurance. In this paper, the second part of the Safety-Security Assurance Framework - the Socio-Technical Model (SSAF STM) is presented as one way of reasoning about these wider issues that make co-assurance difficult.