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| Criterion |  Operations Runbook |  Operations Failure Mode and Effects Analysis |  Operations 5 Whys |
|---|---|---|---|
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 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Low | High | Low |
Timedifferent | 20-60 min | 2-6 h | 15-30 min |
Participantsdifferent | 1-4 | 3-10 | 2-6 |
Formatdifferent | Async | Workshop | Workshop |
Outputdifferent | Runbook, Checklist, Escalation Path | FMEA Table, Risk Priority, Mitigation Actions | Root cause notes, Countermeasures |
Tagsno overlap | OperationsReliabilityDocumentation | RiskQualityOperationsRoot cause | Root causeIncidentLeanProblem solving |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
