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| Criterion |  Agile Sprint Retrospective |  Product Discovery MVP Test Matrix |  Product Discovery Fake Door Test |
|---|---|---|---|
Purposedifferent | When a sprint is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together. | 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. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 45-75 min | 1-5 Tage |
Participantsdifferent | Scrum Team | 2-8 | Nutzertraffic |
Formatdifferent | Workshop | Workshop | Async |
Outputdifferent | Improvement actions, Team agreements | Test Matrix, Test Plan | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | RetrospectiveImprovementLearning | ExperimentsValidationDiscoveryOptions | ValidationExperimentsDemandDiscovery |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
