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| Criterion |  UX Research User Interviews |  Product Discovery Test Card |  Decision Making Decision Rights Mapping |
|---|---|---|---|
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. | In organizations with many stakeholders, it often blurs who actually decides and who is merely consulted. It separates options, evaluation criteria, and open risks. The result is captured as a Decision Rights matrix and an agreement. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 30–60 min per interview | 20-35 min | 90-180 min |
Participantsdifferent | 1 participant per interview | 1-5 | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | Test Card with a pre-set threshold | Decision Rights Matrix, Agreement |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ExperimentsValidationDiscoveryHypothesis | DecisionGovernanceAlignmentResponsibility |
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