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| Criterion |  UX Research User Interviews |  Product Discovery Smoke Test |  Product Discovery Learning Card |  Growth A/B Testing |
|---|---|---|---|---|
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 only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | 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. |
Complexitydifferent | Low | Low | Low | High |
Timedifferent | 30–60 min per interview | 1-5 Tage | 25-40 min | 1-4 Wochen |
Participantsdifferent | 1 participant per interview | Nutzertraffic | 1-5 | 1-6 |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Interest Metrics, Conversion Signal, Learning Note | Learning Card with evidence and next action | Experiment results, Decision log, Learning summary |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ValidationExperimentsDemandGrowth | ExperimentsValidationDiscoveryLearning | ExperimentsGrowthAnalyticsValidation |