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| Criterion | ![]() Product Strategy Lean Canvas | ![]() Agile Start Stop Continue | ![]() Agile Starfish Retrospective | ![]() Agile 4Ls Retrospective |
|---|---|---|---|---|
Purposedifferent | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | 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 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 45-90 min | 30-60 min | 45-90 min | 45–75 min |
Participantsdifferent | 1-6 | 3-12 | 4-12 | Team members involved |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Start Stop Continue Board, Improvement Actions | Starfish Board, Practice Changes, Experiments | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | StartupLeanAssumptionsBusiness model | RetrospectiveImprovementTeamReflection | RetrospectiveImprovementExperimentsTeam | RetrospectiveLearningReflectionTeam |



