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| Criterion |  UX Research Card Sorting |  Innovation Design Thinking |  Product Discovery Problem Interview |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
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. | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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 experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. |
Complexitydifferent | Low | High | Medium | Low |
Timedifferent | 20-45 min | 1 Tag bis mehrere Wochen | 30-60 min je Interview | 30-60 min |
Participantsdifferent | Based on research question | 4-10 | 5-12 Interviews | 1-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Problem Statement, Prototype, Test Learnings | Problem Evidence, Risk Notes, Customer Segments | Completed Experiment Canvas, Success Metric |
Tagsno overlap | Information architectureNavigationStructure | InnovationPrototypeResearch | DiscoveryInterviewsValidation | ExperimentsValidationDiscoveryHypothesis |