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| Criterion |  Product Discovery Problem Interview |  UX Research Usability Testing |  Product Discovery Riskiest Assumption Test |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | 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. | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 30-60 min je Interview | 1-2 h je Session | 1-2 Wochen pro Iteration | 25-40 min |
Participantsdifferent | 5-12 Interviews | Based on research question | 2-6 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Usability Issues, Severity List, Recommendations | Prioritized Assumption List, Test Plan, Results Report | Learning Card with evidence and next action |
Tags1 shared | DiscoveryInterviewsValidation | ValidationUXPrototype | ExperimentsValidationDiscoveryAssumptions | ExperimentsValidationDiscoveryLearning |