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| Criterion |  Operations Fishbone Diagram |  UX Research Card Sorting |  UX Research First-click Testing |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | 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. | When users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Low | Low | Low | High |
Timedifferent | 30-60 min | 20-45 min | 1-2 Tage | 2-8 h |
Participantsdifferent | 2-8 | Based on research question | 10-30 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Content groups, Label set, IA hypotheses | Click Heatmap, Success Rate, Design Recommendations | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | Root causeQualityOperations | Information architectureNavigationStructure | UXNavigationFindabilityValidation | Problem solvingRoot causeDecisionOperations |