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| Criterion |  Operations ABC Analysis |  Operations RACI Matrix |  DevOps Blameless Postmortem |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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. | 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 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 | Low | Medium | Low |
Timedifferent | 30-60 min | 45-90 min | 30-90 min | 30-60 min |
Participantsdifferent | 1-5 | 2-8 | 3-12 | 2-10 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ABC Classification, Focus Rules, Control List | RACI Matrix, Responsibility Map, Decision Notes | Postmortem Doc, Action Items, Timeline | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | PrioritizationOperationsPortfolio | RolesResponsibilityGovernanceOperations | Site Reliability EngineeringIncidentLearningReliability | DecisionRolesGovernanceAlignment |