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| Criterion |  Product Discovery Problem Interview |  UX Research Customer Journey Mapping |  Product Discovery Experiment Canvas |  Product Discovery Test 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 user journey falls apart across many touchpoints, customer journey mapping makes the experience visible as a coherent arc. Phases, emotions, and breaks become legible enough to prioritize critical moments deliberately. | When experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-60 min je Interview | 2-4 h | 30-60 min | 20-35 min |
Participantsdifferent | 5-12 Interviews | 4-10 | 1-5 | 1-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Journey Map, Pain-point List, Opportunity Backlog | Completed Experiment Canvas, Success Metric | Test Card with a pre-set threshold |
Tagsno overlap | DiscoveryInterviewsValidation | JourneyServiceService design | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |