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| Criterion |  Innovation Double Diamond |  Decision Making Assumption Surfacing |  Product Discovery Problem Interview |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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 the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | Wochen bis Monate | 45-90 min | 30-60 min je Interview | 45-60 min |
Participantsdifferent | 3-12 | 2-8 | 5-12 Interviews | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Assumption List, Critical Assumptions, Learning Plan | Problem Evidence, Risk Notes, Customer Segments | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ProcessDivergenceInnovation | AssumptionsRiskDecisionDiscovery | DiscoveryInterviewsValidation | AssumptionsRiskExperimentsValidation |