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| Criterion |  UX Design Customer Journey Canvas |  UX Research User Interviews |  Product Discovery Experiment Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | When a journey needs to be understood across several phases, it arranges experience, touchpoints, and opportunities into one picture. It makes gaps and friction along the user path clear. | 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 Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-3 h | 30–60 min per interview | 30-60 min | 20-35 min |
Participantsdifferent | 3-10 | 1 participant per interview | 1-5 | 1-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Customer Journey Canvas, Pain Points, Experience Opportunities | Interview Notes, Themes, Insight Summary | Completed Experiment Canvas, Success Metric | Test Card with a pre-set threshold |
Tagsno overlap | JourneyCustomerService designCanvas | QualitativeResearchCustomerDiscovery | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |