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| Criterion |  Agile Ideal Days |  Product Discovery Riskiest Assumption Test |  Product Discovery Hypothesis Prioritization Canvas |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | 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 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 many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. | 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 | Low | Medium | Medium | Medium |
Timedifferent | 15-60 min | 1-2 Wochen pro Iteration | 60-90 min | 1-5 Tage |
Participantsdifferent | 2-9 | 2-6 | 3-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Prioritized Assumption List, Test Plan, Results Report | Prioritization Canvas, Hypothesis Backlog | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | EstimationEffortAgile | ExperimentsValidationDiscoveryAssumptions | ExperimentsPrioritizationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |