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| Criterion |  Agile 4Ls Retrospective |  Product Strategy Lean Canvas |  Innovation Lean Startup |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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 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. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 45–75 min | 45-90 min | Wochen bis Monate je Lernzyklus | 45-60 min |
Participantsdifferent | Team members involved | 1-6 | 2-8 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 4Ls Board, Learning Themes, Improvement Actions | Lean Canvas, Core Assumptions, Experiment Backlog | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | RetrospectiveLearningReflectionTeam | StartupLeanAssumptionsBusiness model | LeanStartupValidationMVP | AssumptionsRiskExperimentsValidation |