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| Criterion |  Decision Making Pre-Mortem |  UX Design Customer Journey Canvas |  Decision Making Assumption Surfacing |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 20–45 min | 1-3 h | 45-90 min | 45-60 min |
Participantsdifferent | Small cross-functional group | 3-10 | 2-8 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Risk list, Mitigation plan, Assumption log | Customer Journey Canvas, Pain Points, Experience Opportunities | Assumption List, Critical Assumptions, Learning Plan | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | RiskDecisionFailurePlanning | JourneyCustomerService designCanvas | AssumptionsRiskDecisionDiscovery | AssumptionsRiskExperimentsValidation |