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| Criterion |  Agile Bucket System |  Agile Three Amigos |  Agile Specification by Example |
|---|---|---|---|
Purposedifferent | 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 business rules need to become precise, it ties language, example, and test together. It sorts work by value, risk, and delivery ability. The result is captured as an Example Table and Acceptance Tests. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 30-90 min | 15-30 min | 60-90 min pro Feature |
Participantsdifferent | 3-12 | 3 | 3-6 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Bucketed Backlog, Relative Estimates, Split Candidates | Clarified Story, Test Examples, Open Questions | Example Table, Acceptance Tests |
Tagsno overlap | EstimationBacklogRelative sizing | CollaborationBehavior-Driven DevelopmentQualityRefinement | AgileRequirementsExamplesBehavior-Driven Development |
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