Product Manager, Cyber Security Center of Competence for Functional Safety & Cyber Security
SGS-TÜV Saar GmbH
Clause 13 describes a clear separation between systematic faults and random hardware faults as who`s responsibility it is to show suitability. The suitability concerning random hardware failures is usually proven by an FMEDA. The IC supplier has to ensure that the risk of a safety goal violation or any safety requirement due to a systematic fault is sufficiently low and acceptable. Contrary to the interpretation of the 1st edition of
ISO 26262, the new upcoming 2nd edition of this standard allocates the evidence for suitability of random fault management to the integrator and therefore to the next higher level of design integration. Is this the rationale that products, which were not developed in compliance with ISO 26262, the necessity to perform a, e.g., FMEDA on IC level is not given anymore? And does that also mean that the related safety manuals
of such parts need to be adapted in future?