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| Criterion |  Agile NoEstimates |  Agile Ideal Days |  Product Discovery Test Card |
|---|---|---|---|
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 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | laufend | 15-60 min | 20-35 min |
Participantsdifferent | 2-12 | 2-9 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Throughput Data, Flow Forecast, Slicing Rules | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Test Card with a pre-set threshold |
Tagsno overlap | EstimationForecastingFlow | EstimationEffortAgile | ExperimentsValidationDiscoveryHypothesis |
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