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| Criterion |  Operations Change Analysis |  UX Research Tree Testing |  Facilitation 3-Circle Venn Diagram |
|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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. | When three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 45-120 min | 1-2 Tage | 15-45 min |
Participantsdifferent | 2-6 | Based on research question | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Findability Metrics, Path Analysis, Revised IA | Venn Diagram, Overlap Notes, Differentiators |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | Information architectureNavigationFindability | ComparisonFacilitationAlignment |
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