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| Criterion |  UX Research User Interviews |  Product Discovery Problem Interview |  Product Discovery Fake Door Test |  Product Discovery Opportunity Interview |
|---|---|---|---|---|
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 the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | 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 opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 30–60 min per interview | 30-60 min je Interview | 1-5 Tage | 30-60 min je Interview |
Participantsdifferent | 1 participant per interview | 5-12 Interviews | Nutzertraffic | 5-12 Interviews |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Problem Evidence, Risk Notes, Customer Segments | Click Data, Interest Signal, Learning Decision | Interview Notes, Opportunity Themes, Customer Quotes |
Tags1 shared | QualitativeResearchCustomerDiscovery | DiscoveryInterviewsValidation | ValidationExperimentsDemandDiscovery | DiscoveryInterviewsOpportunityCustomer |