# EM-PEO-08 provider comparison

Claude and Grok agree on exactly three identifier-unassigned roots: Grade Scheme, Role Profile and Grade Assignment. Grade Level, Track/Axis and Crosswalk stay owned by Grade Scheme; calibration is WM-ACT-034 moderation plus WM-REC-010 ratification. No identifier is allocated.

Grok narrows Grade Assignment to Employment, with concrete role occupancy allowed only when Employment is absent. It restricts crosswalk purposes to merger consolidation, reporting roll-up and mobility interpretation. Claude's pay-benchmarking mapping example is explicitly superseded because a crosswalk must not become pay authority. Competency-typed expectations remain absent until WM-PER-009 has a current specification.

The single frozen audit accepted the root boundary but returned REVISE for 12 closed checklist items. Revision 3 applies all findings once: stable rule IDs, bound fixtures, explicit lifecycles, temporal and privacy rules, structured crosswalk rows, corrected relations, an unowned-scope register and publication holds. The audit was not rerun.