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| Criterion |  Operations Causal Factor Analysis |  DevOps Blameless Postmortem |  Operations Kepner-Tregoe |  DevOps Incident Command |
|---|---|---|---|---|
Purposedifferent | 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. | 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 a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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. |
Complexitydifferent | High | Medium | High | Medium |
Timedifferent | 2-6 h | 30-90 min | 2-8 h | As needed |
Participantsdifferent | 3-10 | 3-12 | 2-8 | 4-15 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Postmortem Doc, Action Items, Timeline | Problem Analysis, Decision Analysis, Risk Plan | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | CausalityIncidentRoot causeTimeline | Site Reliability EngineeringIncidentLearningReliability | Problem solvingRoot causeDecisionOperations | IncidentOperationsReliability |