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| Criterion |  UX Research First-click Testing |  Operations Fishbone Diagram |  Operations Fault Tree Analysis |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Low | High | Medium |
Timedifferent | 1-2 Tage | 30-60 min | 2-6 h | 45-60 min |
Participantsdifferent | 10-30 | 2-8 | 3-8 | 2-8 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Click Heatmap, Success Rate, Design Recommendations | Fishbone Diagram, Cause Categories, Investigation Backlog | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | UXNavigationFindabilityValidation | Root causeQualityOperations | RiskRoot causeSafety | AssumptionsRiskExperimentsValidation |