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| Criterion |  UX Research User Interviews |  Product Discovery MVP Test Matrix |  Decision Making Trade-off Analysis |  Product Discovery Fake Door Test |
|---|---|---|---|---|
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 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. | With limited resources, quality, speed, cost, and risk almost always compete with each other. Trade-off Analysis makes these tensions explicit and prevents decisions from producing hidden side effects. | 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 | Low | Medium | Medium | Medium |
Timedifferent | 30–60 min per interview | 45-75 min | 45-120 min | 1-5 Tage |
Participantsdifferent | 1 participant per interview | 2-8 | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Test Matrix, Test Plan | Trade-off Matrix, Criteria List, Decision Rationale, Accepted Downsides | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ExperimentsValidationDiscoveryOptions | TradeoffsDecisionCriteriaOptions | ValidationExperimentsDemandDiscovery |