Library / Problem Structuring and Decision Support Principles Framework
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PSD.17:4.2 - Recover what the evidence actually shows

Use C.36 for the cultural relations and their distinctions. Begin with concrete practice evidence: the changed instruction, observed interaction, qualified account of learning, receiving enactment, selection decision, retained example or demonstrated loss. Label expert estimates and conjectures. A lack of a population study does not prohibit a useful bounded judgement.

The following questions help keep different claims apart. Open only those that can change the current decision.

Relation at issueEvidence to recoverWhat the evidence does not establish alone
Variant generationThe proposed or actual difference in the reusable way, its source and conditions, or the changed teaching, recognition or memory arrangement.A new name or file does not identify a new Method; a proposal is not an enacted variant.
TransmissionWhat contribution passed from which source through which carrier or interaction to which receiving practitioner, when and under what interpretation.Sending or downloading a document does not prove understanding, skill or receiving enactment.
Receiving enactmentA bounded actual occurrence in which the receiving practitioner followed the identified Method, with its meaningful conditions and result limits.Attendance, stated intention or a copied output does not prove that the Method was followed.
Recognition and selectionWho recognized which contribution under what criterion, and which practitioner or institution selected which variant for what use.A local project choice, credential or endorsement does not prove population-wide selection or fitness.
MemoryA recoverable description, exemplar, explanation or other carrier that preserves the distinction needed for reuse.An accessible archive does not show that practitioners retain the ability or habit of using it.
Retention or lossEvidence over the stated interval and relevant opportunities that a contribution continued, changed or ceased to be usable or enacted.Silence, a missing publication or no opportunity to use the Method does not by itself establish loss.
MediationThe actual tool, platform, community or publication arrangement and the visibility, interpretation, recognition or selection relation it changes.A prominent display, recommender output or high access count does not establish value, control or cultural success.

Keep claim scope smaller than or equal to the observed population and period. A workshop account may show one useful adaptation. A review of published applications may reveal cases to inspect. Neither establishes how every practitioner in a country works.

The PSD.15 repertoire supplies a variant, lineage or bounded evidence only when it changes this cultural decision. Its offering status is not evidence of transmission. The PSD.16 arrangement result can similarly supply a local change or observation; resolution of one interference is not evidence that another team learned it. If either input is absent, stale, out of scope or incompatible, obtain a compatible result that supports the particular cultural link being claimed, or leave that link unproved.

For a claimed performed occurrence, first recover each actual performer’s A.13 basis and independently admit the occurrence through A.15.1: performance history, enacted Method, extent and the obtaining containing-System relation. Add F.6 only when precise assignment-bound attribution is consumed. Missing attribution does not erase independently established Work. A case packet remains evidence or description, not the occurrence.

Do not demand a complete causal history before a small permitted intervention. Use the available basis to decide the present continuation. Leave explanations unresolved where their distinction cannot change that supported decision; select further inquiry through C.11.DUA only for an obtainable contribution worth its whole burden. If a new facilitator drops a concern, the cause might be an incomplete example, a changed participation condition, lack of skill, time pressure or the reward for a quick positive answer. Each can require a different change.