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| Criterion |  Agile NoEstimates |  Product Discovery Riskiest Assumption Test |  Product Discovery Fake Door Test |  Product Discovery Learning 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 an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | laufend | 1-2 Wochen pro Iteration | 1-5 Tage | 25-40 min |
Participantsdifferent | 2-12 | 2-6 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Throughput Data, Flow Forecast, Slicing Rules | Prioritized Assumption List, Test Plan, Results Report | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | EstimationForecastingFlow | ExperimentsValidationDiscoveryAssumptions | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |