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| Criterion |  Innovation Double Diamond |  Product Discovery Pretotyping |  Operations Gemba Walk |  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. | Pretotyping clarifies whether a customer problem and solution idea create enough real demand. It separates problem, assumption, solution, and evidence, and captures the result as a pretotyping sketch, test setup, and conversion data. | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | 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 | Low | Low | Medium |
Timedifferent | Wochen bis Monate | Stunden bis wenige Tage | 30-120 min | 1-5 Tage |
Participantsdifferent | 3-12 | 1-4 | 2-6 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Observation Notes, Improvement Ideas | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ProcessDivergenceInnovation | ValidationDemandMVP | LeanObservationProcessOperations | ValidationExperimentsDemandDiscovery |