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| Criterion |  UX Research Tree Testing |  Operations RACI Matrix |  UX Research Card Sorting |  Decision Making DACI |
|---|---|---|---|---|
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. | With unclear responsibilities across several roles or areas, the method creates unambiguous accountability logic. It reduces friction because decision, execution, contribution, and information become separately visible. | 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. | 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-2 Tage | 45-90 min | 20-45 min | 30-60 min |
Participantsdifferent | Based on research question | 2-8 | Based on research question | 2-10 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Findability Metrics, Path Analysis, Revised IA | RACI Matrix, Responsibility Map, Decision Notes | Content groups, Label set, IA hypotheses | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | Information architectureNavigationFindability | RolesResponsibilityGovernanceOperations | Information architectureNavigationStructure | DecisionRolesGovernanceAlignment |