C.31:4.3 - Measurement-head mapping

When a head becomes decision-facing or publication-facing, create MeasurementHeadMapping before relying on it:

MeasurementHeadMapping:
  sourceHead:
  knownMeasureFamilyOrPractice:
  fpfCharacteristicKind:
  scaleType:
  unitPolicy:
  declaredBasisNeeded:
  requiredEvidence:
  evidenceRelationRefs?:
  evidenceProvenanceRelationRefs?:
  sourceRelationRefs?:
  evidenceClaimAbsentBecause?:
  commonFalseUse:
  nonAdmissibleUse:
  repairAction:
  relationFunctionClaimRef?:     # only when this use depends on exact rule identity
  authoritySourceRef?:           # only when a non-pattern source carries relevant authority

Use an ordinary PatternID to locate the rule. Under E.10 L-EPI-PUB, relationFunctionClaimRef identifies the defining or constraining ClaimGraph only when interpretation, comparison, migration, publication or reuse depends on that exact rule identity. It is not a demand to establish a separate relation-function individual. When an external standard, policy or other non-pattern source carries the relevant authority, use authoritySourceRef for that source instead.

For example, an ordinary InterfaceStandardizationShare account states its subject, the counted interface population, conformance specification, ratio Scale, source/test basis and limitations. It needs no extra rule-identity claim merely to describe that share. If a comparison combines two editions that count partial conformance differently, cite the exact defining predicates through relationFunctionClaimRef before treating their shares as comparable. The comparison still needs its actual measurement and evidence basis; citing the predicate supplies neither test results nor assurance.

This mapping is not a measurement template by itself. It prepares a C.16-compatible characteristic card or a report-only boundary. When the head is decision-facing or publication-facing, the mapping names required evidence plus at least one evidence relation, evidence-provenance relation, or source relation. If no evidence claim is being made, evidenceClaimAbsentBecause states why the head remains local, report-only, or repair-only.