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| Criterion |  UX Research User Interviews |  Decision Making Delphi Method |  Product Discovery MVP Test Matrix |
|---|---|---|---|
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 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 | Low | High | Medium |
Timedifferent | 30–60 min per interview | 1-4 Wochen | 45-75 min |
Participantsdifferent | 1 participant per interview | 6-30 Experten | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | Expert Forecast, Consensus Range, Assumption Notes | Test Matrix, Test Plan |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ForecastingExpertsDecisionStrategy | ExperimentsValidationDiscoveryOptions |
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