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| Criterion |  Agile Start Stop Continue |  Agile Starfish Retrospective |  Product Discovery Fake Door Test |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
Purposedifferent | When a team wants to deliberately adjust its working behavior, it makes habits visible and assessable. It focuses on concrete changes instead of diffuse mood. | When improvement options need to be sorted more finely than just start and stop, it brings observations into clear kinds of action. This makes visible what should be done more, less, newly, or continued. | 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. | When experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 30-60 min | 45-90 min | 1-5 Tage | 30-60 min |
Participantsdifferent | 3-12 | 4-12 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop | Workshop | Async | Workshop + async |
Outputdifferent | Start Stop Continue Board, Improvement Actions | Starfish Board, Practice Changes, Experiments | Click Data, Interest Signal, Learning Decision | Completed Experiment Canvas, Success Metric |
Tagsno overlap | RetrospectiveImprovementTeamReflection | RetrospectiveImprovementExperimentsTeam | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryHypothesis |