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| Criterion |  Agile Affinity Estimation |  Agile Bucket System |  Agile Three Amigos |  Agile Acceptance Criteria Workshop |
|---|---|---|---|---|
Purposedifferent | 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. | When story, test, and implementation could drift apart, it brings business perspective, engineering, and quality together early. It prevents a story from being read differently only late in the process. | When a story needs clear checkpoints before implementation, it sharpens expectation and scope together. It sorts work by value, risk, and delivery ability. The result is captured as Acceptance Criteria and a Story Update. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-90 min | 30-90 min | 15-30 min | 20-40 min pro Story |
Participantsdifferent | 3-12 | 3-12 | 3 | 3-6 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Bucketed Backlog, Relative Estimates, Split Candidates | Clarified Story, Test Examples, Open Questions | Acceptance Criteria, Story Update |
Tagsno overlap | EstimationBacklogRelative sizing | EstimationBacklogRelative sizing | CollaborationBehavior-Driven DevelopmentQualityRefinement | AgileRequirementsRefinementBehavior-Driven Development |