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| Criterion |  Agile Bucket System |  Agile Ideal Days |  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 effort needs to be thought of as real working time, it offers a simple common denominator for comparison. It sorts work by value, risk, and delivery ability. The result is captured as Ideal Day Estimates, Assumption Notes, and Capacity Caveats. | 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 | 15-60 min | 60-90 min pro Feature |
Participantsdifferent | 3-12 | 2-9 | 3-6 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Bucketed Backlog, Relative Estimates, Split Candidates | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Example Table, Acceptance Tests |
Tagsno overlap | EstimationBacklogRelative sizing | EstimationEffortAgile | AgileRequirementsExamplesBehavior-Driven Development |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
