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| Criterion |  Agile 4Ls Retrospective |  Architecture Risk Storming |  Product Discovery Assumption Mapping |  Agile Starfish Retrospective |
|---|---|---|---|---|
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. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 45–75 min | 60-90 min | 45-60 min | 45-90 min |
Participantsdifferent | Team members involved | 4-12 | 2-8 | 4-12 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | 4Ls Board, Learning Themes, Improvement Actions | Annotated Diagram, Prioritized Risk List, Action Backlog | Assumption map, Test backlog, Risk ranking | Starfish Board, Practice Changes, Experiments |
Tagsno overlap | RetrospectiveLearningReflectionTeam | RiskArchitectureWorkshopValidation | AssumptionsRiskExperimentsValidation | RetrospectiveImprovementExperimentsTeam |