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| Criterion |  Decision Making Argument Mapping |  Decision Making Assumption Surfacing |  UX Design Customer Journey Canvas |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. | 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 journey needs to be understood across several phases, it arranges experience, touchpoints, and opportunities into one picture. It makes gaps and friction along the user path clear. | 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 | 1-3 h | 45-90 min | 1-3 h | 45-60 min |
Participantsdifferent | 1-8 | 2-8 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Argument Map, Evidence Gaps, Decision Rationale | Assumption List, Critical Assumptions, Learning Plan | Customer Journey Canvas, Pain Points, Experience Opportunities | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | SensemakingDecisionRationale | AssumptionsRiskDecisionDiscovery | JourneyCustomerService designCanvas | AssumptionsRiskExperimentsValidation |