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| Criterion |  Product Discovery Learning Card |  Agile Starfish Retrospective |  Agile 4Ls Retrospective |  Agile Start Stop Continue |
|---|---|---|---|---|
Purposedifferent | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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 a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 25-40 min | 45-90 min | 45–75 min | 30-60 min |
Participantsdifferent | 1-5 | 4-12 | Team members involved | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Learning Card with evidence and next action | Starfish Board, Practice Changes, Experiments | 4Ls Board, Learning Themes, Improvement Actions | Start Stop Continue Board, Improvement Actions |
Tagsno overlap | ExperimentsValidationDiscoveryLearning | RetrospectiveImprovementExperimentsTeam | RetrospectiveLearningReflectionTeam | RetrospectiveImprovementTeamReflection |