Library / Problem Structuring and Decision Support Principles Framework
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Source changed 2026-10-03 02:22:15 UTC · snapshot created 2026-10-03 03:38:22 UTC · last check 2026-10-03 04:10:10 UTC

PSD.1:4.6 - Reopen locally and preserve the later choice

Name the event that can invalidate the current boundary: a changed recipient, holder, horizon, receiving Work, authority relation, participant or concern, formulation, source, alternative family, evidence condition, consequence, or later decision. Reopen only the affected position and its dependent results.

A returned recommendation may inform the later decision, and follow-up may observe that later decision, but neither retroactively turns the decision-support performer into the choice owner. If the later choice changes the problem structure, use PSD.14 to determine which follow-up or reframing question is current.