C.11.DUA:5.1 - A useful distinction now and corroboration for a later claim

Present use. An engineer reports a criterion below incoming background. The recipient wants to understand whether that is necessarily a design mistake. An archive search would take weeks. Its plausible results could change the historical account but would not change the requested distinction.

Completed answer. “On your account, the threshold was below the incoming background. That alone does not establish a mistake. A criterion for the operation’s added contribution and a criterion for total exposure govern different quantities; the latter can require reducing background too. Compare the protection gained with the feasible treatment burden before judging the threshold.”

That answer supplies the requested distinction and keeps its attribution. It makes no independently verified historical claim and issues no operating permission. The answer itself completes this use; a second account of why archives were not searched adds nothing.

Changed use. The recipient now plans to attribute responsibility in a report. Suppose an accessible contemporary record can identify who set the criterion and what it governed. A one-hour record check is feasible and could settle the attribution.

Completed advice. “Check the contemporary criterion record before attributing its authorship or meaning. The participant account supports the attributed report of experience; it does not establish that attribution. If the record cannot settle it, describe the account without assigning responsibility.” This finishes the advice, including the next feasible check and the limit on its use. It does not claim the check has occurred.