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| Criterion |  Decision Making Assumption Surfacing |  UX Research Customer Journey Mapping |  Product Discovery Assumption Mapping |
|---|---|---|---|
Purposedifferent | 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 a user journey falls apart across many touchpoints, customer journey mapping makes the experience visible as a coherent arc. Phases, emotions, and breaks become legible enough to prioritize critical moments deliberately. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 45-90 min | 2-4 h | 45-60 min |
Participantsdifferent | 2-8 | 4-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Journey Map, Pain-point List, Opportunity Backlog | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | JourneyServiceService design | AssumptionsRiskExperimentsValidation |
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