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 12:10:10 UTC

Enter at the missing result

The entries below are alternatives, not a work order. An adequate result can be reused; a material change can reopen one contribution without reopening the rest.

Working questionStart hereFirst useful return
What useful future contribution could be possible?Opportunity-construction MethodA candidate opportunity, dependencies, bounded reachability rationale and next question; no adviser is required.
Who is asking for what advice, and on what terms?Bound the advising engagement, using PSD.1A recipient/holder/horizon question and service boundary, or the missing condition.
What facts about this holder could reverse the answer?Recover only the relevant holder premisesThe holder’s current configuration and facts or gaps that can change the decision.
Which specialist result is missing?Use the direct result-acquisition MethodA useful qualified answer and its limit, a worthwhile bounded request, or a blocker.
Which directions are actually live, and how do they compare?Keep a qualified live candidate set and Compare for this receiving useA bounded set, comparison, partial order or discriminating question.
What can the recipient responsibly consider now?Compose the bounded recommendation and Return it for the agreed useOne or more explicitly scoped recommendation dispositions with basis and limits.
Has something changed that affects earlier advice?Reconsider only affected adviceRetained, narrowed or blocked claims; a request to the practice responsible for an affected result; or a later recommendation.

A qualified opportunity supplies a candidate basis to PSD.8; PSD.9–PSD.12 supply comparison premises to PSD.13; PSD.14 handles an actual follow-up question. Each dependency applies only to the same relevant holder, configuration, use and horizon. Neither these links nor their order establishes performed Work, a composite Method, dispatch or authority.