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| Criterion |  Decision Making Wideband Delphi |  Facilitation Dot Estimation |  Product Discovery Learning Card |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | When size or effort can only be estimated roughly, Dot Estimation condenses the group's experience into a quick range. It turns individual contributions into a visible selection. The result is captured as an Effort Heatmap, Risk Signals, and Discussion Targets. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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 | High | Low | Low | Medium |
Timedifferent | 1-4 h or multiple rounds | 5-20 min | 25-40 min | 1-5 Tage |
Participantsdifferent | 4-12 Experten | 3-20 | 1-5 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Estimate Range, Assumption Log, Expert Consensus Notes | Effort Heatmap, Risk Signals, Discussion Targets | Learning Card with evidence and next action | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | EstimationExpertsForecasting | EstimationEffortRisk | ExperimentsValidationDiscoveryLearning | ValidationExperimentsDemandDiscovery |