ASIL decomposition methodology per ISO 26262-9 enabling allocation of lower ASILs to redundant elements while maintaining overall safety integrity. Covers valid decomposition schemes (e.g., ASIL D to ASIL B(D) + ASIL B(D)), independence requirements (temporal, spatial, functional), and sufficiency of separation. Addresses common decomposition patterns for hardware and software, argumentation strategies for demonstrating independence, and practical limitations. Includes verification approaches and assessment evidence requirements.
ASIL Decomposition
Reduce ASIL allocation via architectural independence. Learn valid decomposition patterns, independence criteria, and how to argue residual risk credibly.