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| Criterion |  Decision Making Pre-Mortem |  UX Research Card Sorting |  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 content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 20–45 min | 20-45 min | 45-60 min |
Participantsdifferent | Small cross-functional group | Based on research question | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Risk list, Mitigation plan, Assumption log | Content groups, Label set, IA hypotheses | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | RiskDecisionFailurePlanning | Information architectureNavigationStructure | AssumptionsRiskExperimentsValidation |
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