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| Criterion |  UX Research Tree Testing |  Decision Making Assumption Surfacing |  Decision Making DACI |  UX Research Card Sorting |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-2 Tage | 45-90 min | 30-60 min | 20-45 min |
Participantsdifferent | Based on research question | 2-8 | 2-10 | Based on research question |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Findability Metrics, Path Analysis, Revised IA | Assumption List, Critical Assumptions, Learning Plan | DACI Matrix, Decision Owner, Decision Log | Content groups, Label set, IA hypotheses |
Tagsno overlap | Information architectureNavigationFindability | AssumptionsRiskDecisionDiscovery | DecisionRolesGovernanceAlignment | Information architectureNavigationStructure |