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| Criterion |  Engineering Failure Scenario Analysis |  DevOps Blameless Postmortem |  DevOps Incident Command |  Operations After-Action Review |
|---|---|---|---|---|
Purposedifferent | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | 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. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 1-3 h | 30-90 min | As needed | 20-45 min |
Participantsdifferent | 3-8 | 3-12 | 4-15 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Postmortem Doc, Action Items, Timeline | Incident Log, Action Tracker, Stakeholder Updates | Lessons learned, Action items, Event summary |
Tagsno overlap | FailureResilienceRisk | Site Reliability EngineeringIncidentLearningReliability | IncidentOperationsReliability | LearningOperationsImprovement |