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| Criterion |  UX Research User Interviews |  Product Discovery Fake Door Test |  Product Discovery Opportunity Interview |  Product Discovery Opportunity Solution Tree |
|---|---|---|---|---|
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 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. | When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 30–60 min per interview | 1-5 Tage | 30-60 min je Interview | 1-2 h Setup, laufend |
Participantsdifferent | 1 participant per interview | Nutzertraffic | 5-12 Interviews | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Click Data, Interest Signal, Learning Decision | Interview Notes, Opportunity Themes, Customer Quotes | Opportunity Solution Tree, Experiment Backlog, Learning Log |
Tags1 shared | QualitativeResearchCustomerDiscovery | ValidationExperimentsDemandDiscovery | DiscoveryInterviewsOpportunityCustomer | DiscoveryOutcomesExperimentsOpportunity |