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| Criterion |  Product Discovery MVP Test Matrix |  Operations Learning Review |  DevOps Blameless Postmortem |
|---|---|---|---|
Purposedifferent | 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. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 45-75 min | 1-3 h | 30-90 min |
Participantsdifferent | 2-8 | 3-10 | 3-12 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Test Matrix, Test Plan | Learning Review Notes, System Factors, Improvement Actions | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | ExperimentsValidationDiscoveryOptions | LearningRetrospectiveIncidentOperations | Site Reliability EngineeringIncidentLearningReliability |
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