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| Criterion |  UX Research User Interviews |  Product Discovery Learning Card |  Growth A/B Testing |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitydifferent | Low | Low | High | Medium |
Timedifferent | 30–60 min per interview | 25-40 min | 1-4 Wochen | 45-75 min |
Participantsdifferent | 1 participant per interview | 1-5 | 1-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | Learning Card with evidence and next action | Experiment results, Decision log, Learning summary | Test Matrix, Test Plan |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ExperimentsValidationDiscoveryLearning | ExperimentsGrowthAnalyticsValidation | ExperimentsValidationDiscoveryOptions |