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| Criterion |  Decision Making Delphi Method |  Product Discovery Fake Door Test |  Decision Making DACI |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
Purposedifferent | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | 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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | 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. |
Complexitydifferent | High | Medium | Low | Medium |
Timedifferent | 1-4 Wochen | 1-5 Tage | 30-60 min | 45-75 min |
Participantsdifferent | 6-30 Experten | Nutzertraffic | 2-10 | 2-8 |
Formatdifferent | Async | Async | Workshop + async | Workshop |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Click Data, Interest Signal, Learning Decision | DACI Matrix, Decision Owner, Decision Log | Test Matrix, Test Plan |
Tagsno overlap | ForecastingExpertsDecisionStrategy | ValidationExperimentsDemandDiscovery | DecisionRolesGovernanceAlignment | ExperimentsValidationDiscoveryOptions |