Library / Problem Structuring and Decision Support Principles Framework
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Source changed 2026-10-03 08:01:07 UTC · snapshot created 2026-10-03 08:04:31 UTC · last check 2026-10-03 08:05:10 UTC

PSD.1:0 - Use This When

Use this pattern when someone asks a decision-support performer to “help decide”, “structure the problem”, “recommend what to do”, or “say what should develop next”, but the engagement is not yet bounded well enough to produce a responsible result. The missing value may be the recipient, holder or subject, horizon, receiving decision, receiving Work, choice owner, authority, consequence, or kind of return expected.

Begin with the later decision or use that the decision-support result is meant to inform. Separate the performer who prepares decision support from the person or arrangement that receives it and from the Agent that owns the later choice. Then return one bounded engagement question or the exact value that is still missing.

The practical gain is an affordable start that works both before overt contest and inside a disputed situation. It prevents a workshop, model, score, or recommendation from silently becoming the decision, and it gives later problem-structuring or analytical Work a recoverable subject and stop.

Do not use PSD.1 merely because a chooser must select among an already-qualified live option set; use C.11 or the applicable domain choice rule directly. Use one holder-specific practice directly when it owns the whole question and no decision-support composition remains. A scientific, legal, ethical, safety, governance, or other specialist question stays with that practice unless its result must be returned into a separately governed decision-support engagement.