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| Criterion |  UX Research User Interviews |  Product Discovery Test Card |  Agile Acceptance Criteria Workshop |
|---|---|---|---|
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. | When a story needs clear checkpoints before implementation, it sharpens expectation and scope together. It sorts work by value, risk, and delivery ability. The result is captured as Acceptance Criteria and a Story Update. |
Complexitysame | Low | Low | Low |
Timedifferent | 30–60 min per interview | 20-35 min | 20-40 min pro Story |
Participantsdifferent | 1 participant per interview | 1-5 | 3-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | Test Card with a pre-set threshold | Acceptance Criteria, Story Update |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ExperimentsValidationDiscoveryHypothesis | AgileRequirementsRefinementBehavior-Driven Development |
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