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| Criterion |  UX Research Card Sorting |  Product Discovery Concierge MVP |  Product Discovery Fake Door Test |
|---|---|---|---|
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 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. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 20-45 min | 1-4 Wochen | 1-5 Tage |
Participantsdifferent | Based on research question | 3-10 Kunden | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Content groups, Label set, IA hypotheses | Concierge Learnings, Service Blueprint, MVP Risks | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | Information architectureNavigationStructure | MVPValidationServiceDiscovery | ValidationExperimentsDemandDiscovery |
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