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| Criterion |  Product Strategy Lean Canvas |  Agile 4Ls Retrospective |  Product Discovery Assumption Mapping |
|---|---|---|---|
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 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 45-90 min | 45–75 min | 45-60 min |
Participantsdifferent | 1-6 | Team members involved | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | 4Ls Board, Learning Themes, Improvement Actions | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | StartupLeanAssumptionsBusiness model | RetrospectiveLearningReflectionTeam | AssumptionsRiskExperimentsValidation |
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