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| Criterion |  Operations After-Action Review |  Operations ABC Analysis |  DevOps Incident Timeline Analysis |  Operations Causal Factor Analysis |
|---|---|---|---|---|
Purposedifferent | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | 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. | 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 | Low | Medium | High |
Timedifferent | 20-45 min | 30-60 min | 60-180 min | 2-6 h |
Participantsdifferent | 3-12 | 1-5 | 3-10 | 3-10 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Lessons learned, Action items, Event summary | ABC Classification, Focus Rules, Control List | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | LearningOperationsImprovement | PrioritizationOperationsPortfolio | IncidentTimelineSite Reliability Engineering | CausalityIncidentRoot causeTimeline |