PSD.15:4.7 - Preserve cultural lineage without inventing cultural continuation

Record where a reusable change came from when that relation matters: an identified source Method, a documented adaptation, a changed stopping rule, a taught practice, or another qualified source. Similar names, chronological succession and a shared diagram do not establish derivation.

Keep proposed derivation, observed local enactment, transmission to another practitioner, recognition, selection, retention and loss distinct. A source publication can make a description available without proving that anyone learned or enacted the Method. A successful trial can justify a restricted offering without showing that a professional community adopted it.

Use C.36 for an actual cultural-evolution question. Supply PSD.17 with the repertoire’s qualified variant or local evidence only when it matters to that cultural-continuation decision. Name the practitioner population, engagement/community, place and period that the evidence actually covers, and mark the unobserved links. The receiving cultural decision is not entailed or authorized by the repertoire.

This boundary applies equally to new software support and AI-assisted practice. A tool release is not cultural uptake; widespread use of a tool is not evidence that the same Method was enacted by everyone. Teaching, service change and deliberate cultural intervention require their own work and authority.