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| Criterion |  Product Discovery Learning Card |  Agile Start Stop Continue |  Product Discovery Experiment Canvas |  Agile 4Ls Retrospective |
|---|---|---|---|---|
Purposedifferent | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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 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. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 25-40 min | 30-60 min | 30-60 min | 45–75 min |
Participantsdifferent | 1-5 | 3-12 | 1-5 | Team members involved |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Learning Card with evidence and next action | Start Stop Continue Board, Improvement Actions | Completed Experiment Canvas, Success Metric | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | ExperimentsValidationDiscoveryLearning | RetrospectiveImprovementTeamReflection | ExperimentsValidationDiscoveryHypothesis | RetrospectiveLearningReflectionTeam |