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| Criterion |  Operations After-Action Review |  DevOps Blameless Postmortem |  Decision Making Decision Rights Mapping |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | In organizations with many stakeholders, it often blurs who actually decides and who is merely consulted. It separates options, evaluation criteria, and open risks. The result is captured as a Decision Rights matrix and an agreement. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 20-45 min | 30-90 min | 90-180 min | 30-60 min |
Participantsdifferent | 3-12 | 3-12 | 4-12 | 2-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | Postmortem Doc, Action Items, Timeline | Decision Rights Matrix, Agreement | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | LearningOperationsImprovement | Site Reliability EngineeringIncidentLearningReliability | DecisionGovernanceAlignmentResponsibility | DecisionRolesGovernanceAlignment |