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| Criterion |  Innovation Double Diamond |  Innovation Design Thinking |  Product Discovery Concierge MVP |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | 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 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 | Medium | High | Medium | Medium |
Timedifferent | Wochen bis Monate | 1 Tag bis mehrere Wochen | 1-4 Wochen | 1-5 Tage |
Participantsdifferent | 3-12 | 4-10 | 3-10 Kunden | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Problem Statement, Prototype, Test Learnings | Concierge Learnings, Service Blueprint, MVP Risks | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ProcessDivergenceInnovation | InnovationPrototypeResearch | MVPValidationServiceDiscovery | ValidationExperimentsDemandDiscovery |