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| Criterion |  Agile NoEstimates |  Agile Ideal Days |  Product Discovery Fake Door Test |
|---|---|---|---|
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. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | laufend | 15-60 min | 1-5 Tage |
Participantsdifferent | 2-12 | 2-9 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Throughput Data, Flow Forecast, Slicing Rules | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | EstimationForecastingFlow | EstimationEffortAgile | ValidationExperimentsDemandDiscovery |
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