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| Criterion |  Decision Making Decision Tree |  DevOps Blameless Postmortem |  DevOps Incident Command |  Operations After-Action Review |
|---|---|---|---|---|
Purposedifferent | For decisions with follow-on paths and dependencies, a linear comparison is often not enough. A Decision Tree shows how options branch under conditions and which consequences hang on each branch. | 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. | 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. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 30-90 min | 30-90 min | As needed | 20-45 min |
Participantsdifferent | 1-6 | 3-12 | 4-15 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Decision Tree, Option Map, Assumption List | Postmortem Doc, Action Items, Timeline | Incident Log, Action Tracker, Stakeholder Updates | Lessons learned, Action items, Event summary |
Tagsno overlap | DecisionTreeOptions | Site Reliability EngineeringIncidentLearningReliability | IncidentOperationsReliability | LearningOperationsImprovement |