C.16:5.6 - Keep comparability and scoring bounded

M‑CMP‑1. Direct comparability is conservative: two readings cite the same U.DHCMethodRef, Characteristic, Scale and Unit semantics, compatible model and calibration regime, and a compatible time or population basis. Similar labels or units are insufficient.

M‑CMP‑2. Cross-template conversion, normalization, scoring, aggregation, comparison, selection, or cross-context transport names its method, declaration, and loss or uncertainty consequence under the pattern for that operation. Name an F.9 Bridge when cross-context semantic correspondence is required. C.16 does not mint a common scale or corpus-wide migration relation.

M‑SCORE‑1. A Score is another declared Scale reading. Its scoring method and actual application remain under their direct Method, Work, and operation-binding patterns. A score does not overwrite its source measurement results.