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| Criterion |  UX Research Card Sorting |  Decision Making Pre-Mortem |  UX Research Tree Testing |
|---|---|---|---|
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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 20-45 min | 20–45 min | 1-2 Tage |
Participantsdifferent | Based on research question | Small cross-functional group | Based on research question |
Formatdifferent | Workshop + async | Workshop | Async |
Outputdifferent | Content groups, Label set, IA hypotheses | Risk list, Mitigation plan, Assumption log | Findability Metrics, Path Analysis, Revised IA |
Tagsno overlap | Information architectureNavigationStructure | RiskDecisionFailurePlanning | Information architectureNavigationFindability |
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