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| Criterion |  UX Research Card Sorting |  UX Research Tree Testing |  Decision Making Risk Matrix |  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 a navigation exists but search paths still fail, tree testing checks findability without visual distraction. The method shows whether labels, levels, and paths really lead to the intended destination. | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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 | Low | Low |
Timedifferent | 20-45 min | 1-2 Tage | 30-60 min | 45-90 min |
Participantsdifferent | Based on research question | Based on research question | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Findability Metrics, Path Analysis, Revised IA | Risk Matrix, Top Risk List | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | Information architectureNavigationStructure | Information architectureNavigationFindability | RiskDecisionPrioritizationAssessment | AssumptionsRiskDecisionDiscovery |