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| Criterion |  DevOps Blameless Postmortem |  Decision Making Decision Rights Mapping |  DevOps Incident Command |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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 | Medium | Medium | Medium | Low |
Timedifferent | 30-90 min | 90-180 min | As needed | 30-60 min |
Participantsdifferent | 3-12 | 4-12 | 4-15 | 2-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Decision Rights Matrix, Agreement | Incident Log, Action Tracker, Stakeholder Updates | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | DecisionGovernanceAlignmentResponsibility | IncidentOperationsReliability | DecisionRolesGovernanceAlignment |