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| Criterion |  UX Research Card Sorting |  Product Discovery Riskiest Assumption Test |  Product Discovery Assumption Mapping |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | 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 an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 20-45 min | 1-2 Wochen pro Iteration | 45-60 min | 45-90 min |
Participantsdifferent | Based on research question | 2-6 | 2-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Prioritized Assumption List, Test Plan, Results Report | Assumption map, Test backlog, Risk ranking | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | Information architectureNavigationStructure | ExperimentsValidationDiscoveryAssumptions | AssumptionsRiskExperimentsValidation | AssumptionsRiskDecisionDiscovery |