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| Criterion |  UX Research Card Sorting |  Innovation Design Thinking |  Product Discovery Problem Interview |  Product Discovery Concierge MVP |
|---|---|---|---|---|
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 an idea can first fail or grow through genuine hands-on support, it relies on manual work instead of automation. It shows whether user value holds up even under manual execution. |
Complexitydifferent | Low | High | Medium | Medium |
Timedifferent | 20-45 min | 1 Tag bis mehrere Wochen | 30-60 min je Interview | 1-4 Wochen |
Participantsdifferent | Based on research question | 4-10 | 5-12 Interviews | 3-10 Kunden |
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 | Concierge Learnings, Service Blueprint, MVP Risks |
Tagsno overlap | Information architectureNavigationStructure | InnovationPrototypeResearch | DiscoveryInterviewsValidation | MVPValidationServiceDiscovery |