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| Criterion |  Decision Making DACI |  DevOps Blameless Postmortem |  DevOps Incident Command |  Operations RACI Matrix |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | With unclear responsibilities across several roles or areas, the method creates unambiguous accountability logic. It reduces friction because decision, execution, contribution, and information become separately visible. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 30-60 min | 30-90 min | As needed | 45-90 min |
Participantsdifferent | 2-10 | 3-12 | 4-15 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | DACI Matrix, Decision Owner, Decision Log | Postmortem Doc, Action Items, Timeline | Incident Log, Action Tracker, Stakeholder Updates | RACI Matrix, Responsibility Map, Decision Notes |
Tagsno overlap | DecisionRolesGovernanceAlignment | Site Reliability EngineeringIncidentLearningReliability | IncidentOperationsReliability | RolesResponsibilityGovernanceOperations |