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| Criterion |  UX Research Empathy Mapping |  UX Research Card Sorting |  Product Discovery Assumption Mapping |  UX Research Affinity Diagramming |
|---|---|---|---|---|
Purposedifferent | When a lot is assumed about a target group but little is seen jointly, empathy mapping makes knowledge and gaps directly comparable. The picture also shows which assumptions hold up and where evidence is missing. | 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. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 30–60 min | 20-45 min | 45-60 min | 45–90 min |
Participantsdifferent | 4-8 | Based on research question | 2-8 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Empathy Map, Assumptions List, Research Gaps | Content groups, Label set, IA hypotheses | Assumption map, Test backlog, Risk ranking | Theme clusters, Insight statements, Opportunity areas |
Tagsno overlap | SynthesisQualitativeWorkshop | Information architectureNavigationStructure | AssumptionsRiskExperimentsValidation | SynthesisQualitativeRoot cause |