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| Criterion |  UX Research Card Sorting |  Product Discovery Solution Interview |  Product Discovery Test Card |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | When content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 20-45 min | 30-60 min je Interview | 20-35 min | 25-40 min |
Participantsdifferent | Based on research question | 5-10 Interviews | 1-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Solution Feedback, Objection List, Validation Notes | Test Card with a pre-set threshold | Learning Card with evidence and next action |
Tagsno overlap | Information architectureNavigationStructure | ValidationInterviewsPrototype | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryLearning |