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| Criterion |  Facilitation Dot Estimation |  Decision Making Wideband Delphi |  Product Discovery Fake Door Test |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | 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. | 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 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 | Low | High | Medium | Low |
Timedifferent | 5-20 min | 1-4 h or multiple rounds | 1-5 Tage | 25-40 min |
Participantsdifferent | 3-20 | 4-12 Experten | Nutzertraffic | 1-5 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Effort Heatmap, Risk Signals, Discussion Targets | Estimate Range, Assumption Log, Expert Consensus Notes | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | EstimationEffortRisk | EstimationExpertsForecasting | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |