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| Criterion |  Operations Runbook |  Operations Root Cause Tree Analysis |  Operations Root Cause Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | For recurring operational tasks or incidents, the method keeps solid action logic ready. It reduces uncertainty when time pressure, role changes, or rare situations demand fast access. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. | 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. |
Complexitydifferent | Low | Medium | Medium | High |
Timedifferent | 20-60 min | 1-3 h | 1-4 h | 2-6 h |
Participantsdifferent | 1-4 | 2-8 | 3-8 | 3-10 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop |
Outputdifferent | Runbook, Checklist, Escalation Path | Cause Tree, Evidence Notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | OperationsReliabilityDocumentation | Root causeTreeIncidentQuality | Root causeProblem solvingQualityIncident | RiskQualityOperationsRoot cause |