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A Taxonomy of Real-World Defeaters in Safety Assurance Cases

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Moreover, generating defeaters is labor-intensive, relying heavily on the judgment and creativity of safety analysts, which can be prone to confirmation bias. There have been repeated calls for a systematic approach to identifying defeaters in assurance cases.

Defeater identification in assurance cases is itself prone to bias and incompletenessUnassessed

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assurance cases are fraught with challenges, such as incomplete evidence and gaps in reasoning, called defeaters, that can call into question the credibility and robustness of assurance cases. Identifying these defeaters increases confidence in the assurance case and can prevent catastrophic failures.

Defeater analyses of real-world assurance cases identify concrete weaknesses in their arguments and evidenceSupported

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A Taxonomy of Real-World Defeaters in Safety Assurance Cases

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Link: https://arxiv.org/abs/2502.00238
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