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| Criterion |  DevOps Blameless Postmortem |  Decision Making Decision Tree |  Knowledge Modeling IBIS |
|---|---|---|---|
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 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. | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-90 min | 30-90 min | 1-3 h |
Participantsdifferent | 3-12 | 1-6 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Decision Tree, Option Map, Assumption List | Issue Map, Positions, Argument Notes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | DecisionTreeOptions | RationaleKnowledgeDecision |
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