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| Criterion |  Agile 4Ls Retrospective |  Agile Starfish Retrospective |  Product Discovery Experiment Canvas |
|---|---|---|---|
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 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 experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. |
Complexitysame | Low | Low | Low |
Timedifferent | 45–75 min | 45-90 min | 30-60 min |
Participantsdifferent | Team members involved | 4-12 | 1-5 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | 4Ls Board, Learning Themes, Improvement Actions | Starfish Board, Practice Changes, Experiments | Completed Experiment Canvas, Success Metric |
Tagsno overlap | RetrospectiveLearningReflectionTeam | RetrospectiveImprovementExperimentsTeam | ExperimentsValidationDiscoveryHypothesis |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
