Library / Problem Structuring and Decision Support Principles Framework
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Source changed 2026-10-03 11:52:20 UTC · snapshot created 2026-10-03 11:53:41 UTC · last check 2026-10-03 13:15:03 UTC

PSD.17:4.7 - Return the cultural account and keep its limits usable

Return the smallest account that lets the next user act. It should make the following recoverable without copying the entire history:

  • the current practice, Method or variant, population, place, period and carriers;
  • the cultural relation that justified attention and the evidence or labelled estimate;
  • the bounded decision, actual authority, retained alternative and accepted cost;
  • what was proposed, performed or changed, stated separately;
  • the available receiving-enactment and decision-support observations, with the limits that affect reliance;
  • the unproved transmission, recognition, selection, retention, loss or causal links;
  • the supported continuation, responsible return, narrowing or stop, and any separately selected further observation.

A decision can close from the available basis with its relevant uncertainty. If further observation is selected, retain its question and conditions; an unperformed intervention supplies no successful cultural-change claim. Conversely, an observation can establish a receiving use without establishing that this intervention caused it.

Update the PSD.15 repertoire only when the cultural evidence changes a Method offering, applicability, lineage or refresh decision. Return a changed current interference to PSD.16, an affected recommendation to PSD.13 or PSD.14, and a capability or domain-truth question to its qualified owner. Each return identifies the next question and the pattern or practice that answers it.

Preserve the useful narrow incumbent and the unselected branch. A variant can be inappropriate for one receiving use while remaining valuable elsewhere. A deliberate decision not to continue it in a named setting is different from an unexplained loss across the profession.