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| Criterion |  Product Discovery Problem Interview |  UX Research Card Sorting |  Innovation Design Sprint |
|---|---|---|---|
Purposedifferent | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | 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 the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. |
Complexitydifferent | Medium | Low | High |
Timedifferent | 30-60 min je Interview | 20-45 min | 4-5 Tage |
Participantsdifferent | 5-12 Interviews | Based on research question | 5-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Content groups, Label set, IA hypotheses | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | DiscoveryInterviewsValidation | Information architectureNavigationStructure | Design sprintPrototypeValidationInnovation |
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