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| Criterion |  Decision Making Wideband Delphi |  Facilitation Dot Estimation |  Product Discovery MVP Test Matrix |  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. | 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 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 | Medium | Medium |
Timedifferent | 1-4 h or multiple rounds | 5-20 min | 45-75 min | 1-5 Tage |
Participantsdifferent | 4-12 Experten | 3-20 | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Workshop | Async |
Outputdifferent | Estimate Range, Assumption Log, Expert Consensus Notes | Effort Heatmap, Risk Signals, Discussion Targets | Test Matrix, Test Plan | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | EstimationExpertsForecasting | EstimationEffortRisk | ExperimentsValidationDiscoveryOptions | ValidationExperimentsDemandDiscovery |