ISO PAS 21448 does not claim that if its guidance is followed, there will be no recalls related to the safety of the intended function (SOTIF). During hardware development, different sources of information are used to predict random failure rates for components and their allocation to failure modes. The overall probabilistic metric for random hardware failures (PMHF) is more influenced by the source used to determine random failure rates. The vast majority of safety‐related recalls are traceable to one or more of the following: missing safety requirements, requirements that were not verified, and quality spills at suppliers. Audits and assessments by internal personnel are included in the enterprise safety process and provide early information to ensure compliance with the process. The tiered metric reporting can demonstrate the systematic diligence to ensure the completeness of system safety requirements and compliance in order to protect the general public.
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Automotive System Safety ; 113-129
2020-01-17
17 pages
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English
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