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| Criterion |  Agile NoEstimates |  Product Discovery Fake Door Test |  Product Discovery MVP Test Matrix |  Product Discovery Smoke 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 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. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | laufend | 1-5 Tage | 45-75 min | 1-5 Tage |
Participantsdifferent | 2-12 | Nutzertraffic | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop | Async |
Outputdifferent | Throughput Data, Flow Forecast, Slicing Rules | Click Data, Interest Signal, Learning Decision | Test Matrix, Test Plan | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | EstimationForecastingFlow | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryOptions | ValidationExperimentsDemandGrowth |