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| Criterion |  Product Discovery Concierge MVP |  Innovation Design Thinking |  UX Research User Interviews |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | 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. | 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 teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | 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 | Medium | High | Low | Medium |
Timedifferent | 1-4 Wochen | 1 Tag bis mehrere Wochen | 30–60 min per interview | 1-5 Tage |
Participantsdifferent | 3-10 Kunden | 4-10 | 1 participant per interview | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Concierge Learnings, Service Blueprint, MVP Risks | Problem Statement, Prototype, Test Learnings | Interview Notes, Themes, Insight Summary | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | MVPValidationServiceDiscovery | InnovationPrototypeResearch | QualitativeResearchCustomerDiscovery | ValidationExperimentsDemandDiscovery |