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| Criterion |  Agile NoEstimates |  Agile Story Points |  Decision Making PERT Estimation |  Decision Making Three-Point 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 teams want to rate complexity rather than hours, it creates a shared, relative scale. It sorts work by value, risk, and delivery ability. The result is captured as Point Estimates, Reference Stories, and Velocity Data. | 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. | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption Notes. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | laufend | laufend, 1-5 min je Item | 15-45 min | 10-30 min je Item |
Participantsdifferent | 2-12 | 3-9 | 1-8 | 1-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Throughput Data, Flow Forecast, Slicing Rules | Point Estimates, Reference Stories, Velocity Data | PERT Estimate, Expected Value, Risk Notes | Three-Point Estimate, Risk Range, Assumption Notes |
Tags1 shared | EstimationForecastingFlow | EstimationAgileMeasurement | EstimationUncertaintyRisk | EstimationUncertaintyForecasting |