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| Criterion |  Agile T-Shirt Sizing |  Agile Ideal Days |  Agile Affinity Estimation |
|---|---|---|---|
Purposedifferent | When effort only needs to be classified roughly, it makes comparability more important than false precision. It helps sort work quickly into manageable sizes. | 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 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 | Low | Medium |
Timedifferent | 15-45 min | 15-60 min | 30-90 min |
Participantsdifferent | 2-12 | 2-9 | 3-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Size Buckets, Rough Backlog Map, Split Candidates | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Affinity Size Map, Grouped Estimates, Unclear Items |
Tags1 shared | EstimationAgileRoadmap | EstimationEffortAgile | EstimationBacklogRelative sizing |
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