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| Criterion |  UX Research User Interviews |  UX Research Empathy Mapping |  Product Discovery Assumption Mapping |  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 a lot is assumed about a target group but little is seen jointly, empathy mapping makes knowledge and gaps directly comparable. The picture also shows which assumptions hold up and where evidence is missing. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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 | Low | Medium | Medium |
Timedifferent | 30–60 min per interview | 30–60 min | 45-60 min | 1-5 Tage |
Participantsdifferent | 1 participant per interview | 4-8 | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Empathy Map, Assumptions List, Research Gaps | Assumption map, Test backlog, Risk ranking | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | QualitativeResearchCustomerDiscovery | SynthesisQualitativeWorkshop | AssumptionsRiskExperimentsValidation | ValidationExperimentsDemandDiscovery |