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| Criterion |  DevOps Blameless Postmortem |  Operations Causal Factor Analysis |  Decision Making Trade-off Analysis |
|---|---|---|---|
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. | 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. | With limited resources, quality, speed, cost, and risk almost always compete with each other. Trade-off Analysis makes these tensions explicit and prevents decisions from producing hidden side effects. |
Complexitydifferent | Medium | High | Medium |
Timedifferent | 30-90 min | 2-6 h | 45-120 min |
Participantsdifferent | 3-12 | 3-10 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Trade-off Matrix, Criteria List, Decision Rationale, Accepted Downsides |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | CausalityIncidentRoot causeTimeline | TradeoffsDecisionCriteriaOptions |
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