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| Criterion |  DevOps Blameless Postmortem |  Decision Making Decision Tree |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|
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. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-90 min | 30-90 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 3-12 | 1-6 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Decision Tree, Option Map, Assumption List | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | DecisionTreeOptions | ExperimentsValidationDiscoveryAssumptions |
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