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| Criterion |  DevOps Blameless Postmortem |  Decision Making Constraint Analysis |  Product Discovery Assumption Mapping |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
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. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 30-90 min | 30-90 min | 45-60 min | 45-75 min |
Participantsdifferent | 3-12 | 2-8 | 2-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Assumption map, Test backlog, Risk ranking | Test Matrix, Test Plan |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ConstraintsDecisionPlanningOptions | AssumptionsRiskExperimentsValidation | ExperimentsValidationDiscoveryOptions |