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| Criterion |  Agile 4Ls Retrospective |  Agile Bucket System |  Agile Start Stop Continue |  Agile Affinity Estimation |
|---|---|---|---|---|
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 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. | When a team wants to deliberately adjust its working behavior, it makes habits visible and assessable. It focuses on concrete changes instead of diffuse mood. | 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. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 45–75 min | 30-90 min | 30-60 min | 30-90 min |
Participantsdifferent | Team members involved | 3-12 | 3-12 | 3-12 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | 4Ls Board, Learning Themes, Improvement Actions | Bucketed Backlog, Relative Estimates, Split Candidates | Start Stop Continue Board, Improvement Actions | Affinity Size Map, Grouped Estimates, Unclear Items |
Tagsno overlap | RetrospectiveLearningReflectionTeam | EstimationBacklogRelative sizing | RetrospectiveImprovementTeamReflection | EstimationBacklogRelative sizing |