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| Criterion |  Product Discovery Solution Interview |  Growth A/B Testing |  Product Discovery Problem Interview |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 30-60 min je Interview | 1-4 Wochen | 30-60 min je Interview | 25-40 min |
Participantsdifferent | 5-10 Interviews | 1-6 | 5-12 Interviews | 1-5 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Experiment results, Decision log, Learning summary | Problem Evidence, Risk Notes, Customer Segments | Learning Card with evidence and next action |
Tags1 shared | ValidationInterviewsPrototype | ExperimentsGrowthAnalyticsValidation | DiscoveryInterviewsValidation | ExperimentsValidationDiscoveryLearning |