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| Criterion |  Product Discovery Opportunity Solution Tree |  UX Research User Interviews |  Product Discovery Fake Door Test |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 1-2 h Setup, laufend | 30–60 min per interview | 1-5 Tage | 25-40 min |
Participantsdifferent | 2-6 | 1 participant per interview | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Opportunity Solution Tree, Experiment Backlog, Learning Log | Interview Notes, Themes, Insight Summary | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tags1 shared | DiscoveryOutcomesExperimentsOpportunity | QualitativeResearchCustomerDiscovery | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |