Automated compositional safety analysis using component fault trees

Safety assurance is a major challenge in the design of today´s complex embedded systems and future Cyber-physical systems. Especially changes in a system´s architectural design invalidate former safety analyses and require an adaptation of related safety analysis models in order to restore consistency. In this work, we present an approach for automatically generating mappings between failure ports in compositional safety analysis models. This way, automatic and system-wide safety analyses are enabled that can be easily repeated after making modifications to the system´s architecture. We demonstrate the feasibility of our approach using a case study from the automotive domain.