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| Criterion |  Decision Making DACI |  DevOps Blameless Postmortem |  DevOps Incident Timeline Analysis |  Operations Causal Factor Analysis |
|---|---|---|---|---|
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. | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. |
Complexitydifferent | Low | Medium | Medium | High |
Timedifferent | 30-60 min | 30-90 min | 60-180 min | 2-6 h |
Participantsdifferent | 2-10 | 3-12 | 3-10 | 3-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | DACI Matrix, Decision Owner, Decision Log | Postmortem Doc, Action Items, Timeline | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | DecisionRolesGovernanceAlignment | Site Reliability EngineeringIncidentLearningReliability | IncidentTimelineSite Reliability Engineering | CausalityIncidentRoot causeTimeline |