# Independent review request: EM-TEC-06 Reliability, SLO and Observability

Review this boundary independently. Proposed: complete reserved WM-SFT-016 as one Service Level Objective and Reliability Commitment aggregate containing SLI specification, immutable SLO policy versions, evaluations, error-budget policy and effective-dated ObservabilityBinding. Reuse the unassigned Metric Definition candidate for formula/population/unit; WM-MAT-008 for raw observations and absence semantics; WM-ACT-004 for Service; WM-ECO-006 only for contractual SLA obligations and remedies. Leave User Journey as an identifier-unassigned candidate. Commitments attach mainly to service/journey; instance metrics are diagnostic unless a declared aggregation exists. Missing coverage produces unknown, not success; window changes create successor policies and budget transitions. Test a three-service journey with incomplete telemetry and a changed window. Return <=1200 words: Verdict; identity/mastership; SLI/SLO/evaluation/budget; subject placement; observability; missing data/windows/exclusions; SLA boundary; scenario; invariants; blockers. Challenge the single-aggregate choice and User Journey identity. Do not invent identifiers or claim canonical completeness.