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| Criterion |  Operations Runbook |  Operations Failure Mode and Effects Analysis |  DevOps Incident Command |  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. | 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. | 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 | Medium | Low |
Timedifferent | 20-60 min | 2-6 h | As needed | 15-30 min |
Participantsdifferent | 1-4 | 3-10 | 4-15 | 2-6 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop |
Outputdifferent | Runbook, Checklist, Escalation Path | FMEA Table, Risk Priority, Mitigation Actions | Incident Log, Action Tracker, Stakeholder Updates | Root cause notes, Countermeasures |
Tagsno overlap | OperationsReliabilityDocumentation | RiskQualityOperationsRoot cause | IncidentOperationsReliability | Root causeIncidentLeanProblem solving |