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| Criterion |  UX Research User Interviews |  UX Research HEART Framework |  Product Discovery Experiment 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. | Helps clarify observations, needs, and patterns in concrete terms. It groups observations into patterns, questions, and decisions. The result is captured as a HEART-GSM table and dashboard. | 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 | Low | Medium | Low | Low |
Timedifferent | 30–60 min per interview | 120 min initial, dann laufend | 30-60 min | 20-35 min |
Participantsdifferent | 1 participant per interview | 3-6 | 1-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | HEART-GSM Table, Dashboard | Completed Experiment Canvas, Success Metric | Test Card with a pre-set threshold |
Tagsno overlap | QualitativeResearchCustomerDiscovery | MetricsUX researchMeasurementSatisfaction | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |