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| Criterion |  Product Strategy Lean Canvas |  Operations Learning Review |  Agile 4Ls Retrospective |  Agile Mad Sad Glad |
|---|---|---|---|---|
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. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. | 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's or workshop's mood needs to become readable, it structures emotional signals with little setup. It makes strain, relief, and sources of energy tangible. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 45-90 min | 1-3 h | 45–75 min | 30-60 min |
Participantsdifferent | 1-6 | 3-10 | Team members involved | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Learning Review Notes, System Factors, Improvement Actions | 4Ls Board, Learning Themes, Improvement Actions | Emotion Board, Themes, Action Items |
Tagsno overlap | StartupLeanAssumptionsBusiness model | LearningRetrospectiveIncidentOperations | RetrospectiveLearningReflectionTeam | RetrospectiveTeamReflection |