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| Criterion |  Agile T-Shirt Sizing |  Agile Affinity Estimation |  Decision Making PERT 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 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. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 15-45 min | 30-90 min | 15-45 min |
Participantsdifferent | 2-12 | 3-12 | 1-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Size Buckets, Rough Backlog Map, Split Candidates | Affinity Size Map, Grouped Estimates, Unclear Items | PERT Estimate, Expected Value, Risk Notes |
Tags1 shared | EstimationAgileRoadmap | EstimationBacklogRelative sizing | EstimationUncertaintyRisk |
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