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| Criterion |  UX Research User Interviews |  Product Discovery Test Card |  UX Design Lean UX Canvas |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
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 Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | The Lean UX Canvas helps clarify user behavior, touchpoints, and concept decisions. It makes assumptions and desired outcomes visible and captures the result as a completed canvas, hypothesis list, and first experiment. | 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. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 30–60 min per interview | 20-35 min | 2-3 h | 30-60 min |
Participantsdifferent | 1 participant per interview | 1-5 | 3-8 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Test Card with a pre-set threshold | Completed Lean UX Canvas, Hypothesis list, First experiment | Completed Experiment Canvas, Success Metric |
Tags1 shared | QualitativeResearchCustomerDiscovery | ExperimentsValidationDiscoveryHypothesis | CanvasHypothesisOutcomesDiscovery | ExperimentsValidationDiscoveryHypothesis |