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| Criterion |  Innovation Double Diamond |  Decision Making Assumption Surfacing |  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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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 | Low | Medium | Low |
Timedifferent | Wochen bis Monate | 45-90 min | 1-5 Tage | 25-40 min |
Participantsdifferent | 3-12 | 2-8 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Assumption List, Critical Assumptions, Learning Plan | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | ProcessDivergenceInnovation | AssumptionsRiskDecisionDiscovery | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |