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| Criterion |  UX Research Card Sorting |  Product Discovery Solution Interview |  Product Discovery Hypothesis Prioritization Canvas |  Product Discovery Test 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. | When many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 20-45 min | 30-60 min je Interview | 60-90 min | 20-35 min |
Participantsdifferent | Based on research question | 5-10 Interviews | 3-8 | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Solution Feedback, Objection List, Validation Notes | Prioritization Canvas, Hypothesis Backlog | Test Card with a pre-set threshold |
Tagsno overlap | Information architectureNavigationStructure | ValidationInterviewsPrototype | ExperimentsPrioritizationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |