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| Criterion |  UX Research User Interviews |  Decision Making Delphi Method |  Product Discovery Assumption Mapping |
|---|---|---|---|
Purposedifferent | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 30–60 min per interview | 1-4 Wochen | 45-60 min |
Participantsdifferent | 1 participant per interview | 6-30 Experten | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Expert Forecast, Consensus Range, Assumption Notes | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ForecastingExpertsDecisionStrategy | AssumptionsRiskExperimentsValidation |
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