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| Criterion |  Agile NoEstimates |  Agile T-Shirt Sizing |  Decision Making PERT Estimation |
|---|---|---|---|
Purposedifferent | When estimating slows a team down more than it helps, it shifts the focus to flow, small slices, and real lead time. It sorts work by value, risk, and delivery ability. The result is captured as Throughput Data, Flow Forecast, and Slicing Rules. | When effort only needs to be classified roughly, it makes comparability more important than false precision. It helps sort work quickly into manageable sizes. | 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 | Medium | Low | Medium |
Timedifferent | laufend | 15-45 min | 15-45 min |
Participantsdifferent | 2-12 | 2-12 | 1-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Throughput Data, Flow Forecast, Slicing Rules | Size Buckets, Rough Backlog Map, Split Candidates | PERT Estimate, Expected Value, Risk Notes |
Tags1 shared | EstimationForecastingFlow | EstimationAgileRoadmap | EstimationUncertaintyRisk |
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