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| Criterion |  UX Research Personas |  Product Discovery Fake Door Test |  UX Research User Interviews |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | When target groups stay too vague and teams talk about the same people differently, personas create a shared, solid picture of usage. Condensed profiles make needs, contexts, and differences tangible enough for decisions. | 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. | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 1-3 Tage | 1-5 Tage | 30–60 min per interview | 25-40 min |
Participantsdifferent | Internes Team | Nutzertraffic | 1 participant per interview | 1-5 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Persona Profiles, Needs Summary, Scenario Notes | Click Data, Interest Signal, Learning Decision | Interview Notes, Themes, Insight Summary | Learning Card with evidence and next action |
Tagsno overlap | ResearchCustomerSynthesis | ValidationExperimentsDemandDiscovery | QualitativeResearchCustomerDiscovery | ExperimentsValidationDiscoveryLearning |