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| Criterion |  UX Research User Interviews |  Product Discovery Experiment Canvas |  UX Design Lean UX Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
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 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 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 30–60 min per interview | 30-60 min | 2-3 h | 20-35 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 | Completed Experiment Canvas, Success Metric | Completed Lean UX Canvas, Hypothesis list, First experiment | Test Card with a pre-set threshold |
Tags1 shared | QualitativeResearchCustomerDiscovery | ExperimentsValidationDiscoveryHypothesis | CanvasHypothesisOutcomesDiscovery | ExperimentsValidationDiscoveryHypothesis |