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| Criterion |  UX Research Tree Testing |  Systems Thinking Causal Loop Diagram |  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. | A Causal Loop Diagram makes feedback, reinforcement, and balance in a system legible. It uncovers side effects and self-reinforcement that stay hidden in linear explanations. | 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 | Medium | Low |
Timedifferent | 1-2 Tage | 1-3 h | 20-45 min |
Participantsdifferent | Based on research question | 2-8 | Based on research question |
Formatdifferent | Async | Workshop | Workshop + async |
Outputdifferent | Findability Metrics, Path Analysis, Revised IA | Causal Loop Diagram, Feedback Notes, Leverage Points | Content groups, Label set, IA hypotheses |
Tagsno overlap | Information architectureNavigationFindability | FeedbackSystems thinkingCausalityDynamics | Information architectureNavigationStructure |
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