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| Criterion |  UX Research Card Sorting |  Decision Making Decision Matrix |  Product Discovery Assumption Mapping |
|---|---|---|---|
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 several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | 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 | 20-45 min | 45-90 min | 45-60 min |
Participantsdifferent | Based on research question | 2-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Decision Matrix, Scoring Rationale, Selected Option | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | Information architectureNavigationStructure | DecisionCriteriaScoringTradeoffs | AssumptionsRiskExperimentsValidation |
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