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| Criterion |  UX Research Card Sorting |  Product Discovery Problem Interview |  Innovation Design Sprint |  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. | 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 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. | 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 | Medium | High | Medium |
Timedifferent | 20-45 min | 30-60 min je Interview | 4-5 Tage | 1-4 Wochen |
Participantsdifferent | Based on research question | 5-12 Interviews | 5-8 | 3-10 Kunden |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Problem Evidence, Risk Notes, Customer Segments | Prototype, Test Findings, Decision Rationale | Concierge Learnings, Service Blueprint, MVP Risks |
Tagsno overlap | Information architectureNavigationStructure | DiscoveryInterviewsValidation | Design sprintPrototypeValidationInnovation | MVPValidationServiceDiscovery |