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| Criterion |  Product Discovery Product Kata |  Agile 4Ls Retrospective |  Agile Affinity Estimation |  Agile Bucket System |
|---|---|---|---|---|
Purposedifferent | Product Kata helps clarify customer problems, solution ideas, and evidence through a repeatable improvement routine. It captures direction, current metric, target metric, experiment notes, and learning. | 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 many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | When a large batch of work needs a fast, rough estimate, it sorts items into predefined size buckets. It sorts work by value, risk, and delivery ability. The result is captured as a Bucketed Backlog, Relative Estimates, and Split Candidates. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 1-2 Wochen je Loop | 45–75 min | 30-90 min | 30-90 min |
Participantsdifferent | 3-10 | Team members involved | 3-12 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Direction, Current metric, Target metric, Experiment note, Learning report | 4Ls Board, Learning Themes, Improvement Actions | Affinity Size Map, Grouped Estimates, Unclear Items | Bucketed Backlog, Relative Estimates, Split Candidates |
Tagsno overlap | OutcomesDiscoveryLearningIterationCoaching | RetrospectiveLearningReflectionTeam | EstimationBacklogRelative sizing | EstimationBacklogRelative sizing |