G.0:5.1 - Archetype 1: System comparability under mixed evidence and unit constraints
Tell. Two labs compare energy efficiency results of a physical system where measurements use different rigs and units, and some evidence is missing.
Show (failure without CG‑Spec). The team averages an ordinal safety rating, mixes units (“kWh” vs “MJ”), and silently treats missing lanes as zeros. Cross-lab reuse happens without explicit bridge and loss notes, so selection becomes a black box.
Show (repair with CG‑Spec). A conformant CG‑Spec:
- pins the lawful comparator(s) (e.g., unit-aligned ratio comparisons only; ordinal comparisons are order-only),
- declares
MinimalEvidencelanes/carriers and freshness windows per characteristic, - declares explicit failure behavior wiring (tri-state semantics delegated to
G.Core), - exposes Bridge and bounded-use pins when reuse projects between different local meanings under A.19.CN/F.9; unit conversion within the declared comparison basis follows CN-Spec and SCP,
- publishes the pinned editions so parity/refresh can detect drift.