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Sampling for Validation Testing 2024-05-31

Validation is not development. The development process is intended to understand and improve the process and product such that it meets requirements. Critical characteristics should have been determined and realistic tolerances established through experimentation that will guarantee that future product will meet the performance specifications and requirements. Validation is intended to be a confirmation that the product meets the specifications and will in fact meet requirements.

The two default sample plans are the AQL inspection plans and the Confidence/Reliability plans. Neither of these plans are particularly useful for validation.

The AQL and Confidence/Reliability plans are based on inferential statistics and are not predictive of future of events. They can only tell you that the population (or frame) that you sampled from might not exceed some defect level.
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