CHK.6:4.3 - State the bounded result and a return condition

State what the qualification supports: which criterion, checking means, cases, conditions and receiving use it covers. State detected defects and residual uncertainty in terms that change action. A narrow successful probe does not establish all-domain accuracy.

If the criterion misses a work question, return to CHK.1. If the form corrupts its meaning, return to CHK.2. If access or capability is missing, return to CHK.3 or its supplier. If the checker fails, repair, replace or restrict its use and repeat the affected challenge. Compare the gain with the qualification and operating cost through ME.14.

Keep the qualification separate from actual subject answers. CHK.4 still establishes what is true of the subject on its occasion. Reopen qualification when a material criterion, model, tool, observation route or operating condition changes, or when a new counterexample defeats its scope. Changed evidence, instructions, criterion grouping or verdict combination can trigger this even with the same model and criterion. Retain qualification for the unaffected observations and inferences. Stop when further investigation cannot improve the intended reliance at worthwhile cost, and preserve the limit rather than extending the claim.