Unverified50% confidenceFactExact time
Practices such as the 'must-fail test case' are also known in the industry as 'negative testing' or 'pessimistic path testing,' and are often mandatory requirements in certification standards for safety-critical systems (such as medical and aviation software), yet are frequently omitted in ordinary business development.
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50%
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Long-term
Relevance
10/2/2026
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