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| Criterion |  Knowledge Modeling IBIS |  UX Research Usability Testing |  UX Research Tree Testing |
|---|---|---|---|
Purposedifferent | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-3 h | 1-2 h je Session | 1-2 Tage |
Participantsdifferent | 2-8 | Based on research question | Based on research question |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Issue Map, Positions, Argument Notes | Usability Issues, Severity List, Recommendations | Findability Metrics, Path Analysis, Revised IA |
Tagsno overlap | RationaleKnowledgeDecision | ValidationUXPrototype | Information architectureNavigationFindability |
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