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| Criterion |  Decision Making Delphi Method |  UX Research Customer Journey Mapping |  Product Discovery Fake Door Test |
|---|---|---|---|
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 a user journey falls apart across many touchpoints, customer journey mapping makes the experience visible as a coherent arc. Phases, emotions, and breaks become legible enough to prioritize critical moments deliberately. | 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 | Medium | Medium |
Timedifferent | 1-4 Wochen | 2-4 h | 1-5 Tage |
Participantsdifferent | 6-30 Experten | 4-10 | Nutzertraffic |
Formatdifferent | Async | Workshop | Async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Journey Map, Pain-point List, Opportunity Backlog | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ForecastingExpertsDecisionStrategy | JourneyServiceService design | ValidationExperimentsDemandDiscovery |
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