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| Criterion |  Innovation Double Diamond |  Product Discovery Fake Door Test |  Product Discovery Learning Card |
|---|---|---|---|
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. | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | Wochen bis Monate | 1-5 Tage | 25-40 min |
Participantsdifferent | 3-12 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | ProcessDivergenceInnovation | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |
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