# Independent review request: EM-TEC-05 Incident, Problem and Root Cause Review this boundary independently. Proposed: reuse WM-ACT-020 for Cyber Incident; profile rewritten WM-ACT-019 for operational/service incidents; profile reserved WM-KNW-014 for persistent Problem and WM-SFT-014 for versioned Defect; reuse WM-ACT-006 Task for response and remediation work. Keep ImpactAssessment as an identified revisioned incident child. Give RootCauseClaim independent record identity and an evidence/confidence/status lifecycle inside Problem, with incident references, without a new model ID. Separate observation/event, incident declaration, cyber qualification, problem, defect and task. Test three incidents, temporary restoration, one problem, competing supported/disputed cause claims and unfinished permanent remediation. Return <=1200 words: Verdict; identity/mastership; event/incident/cyber boundary; problem/defect/task; impact/root cause; lifecycle; scenario; invariants; blockers. Challenge whether operational and cyber incidents should stay separate and whether RootCauseClaim belongs inside Problem. Do not invent identifiers or claim canonical completeness.