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| Criterion |  Operations Failure Mode and Effects Analysis |  Operations Root Cause Analysis |  DevOps Incident Command |
|---|---|---|---|
Purposedifferent | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | 2-6 h | 1-4 h | As needed |
Participantsdifferent | 3-10 | 3-8 | 4-15 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | RiskQualityOperationsRoot cause | Root causeProblem solvingQualityIncident | IncidentOperationsReliability |
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