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Selected:Change AnalysisFirst-click TestingARID (Active Reviews for Intermediate Designs)Fault Isolation
| Criterion |  Operations Change Analysis |  UX Research First-click Testing |  Architecture ARID (Active Reviews for Intermediate Designs) |  Engineering Fault Isolation |
|---|---|---|---|---|
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 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. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 45-120 min | 1-2 Tage | 2–4 h review as a planning range; preparation and evaluation additional | 30-180 min |
Participantsdifferent | 2-6 | 10-30 | Designers, developers as users, and facilitation | 1-6 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Click Heatmap, Success Rate, Design Recommendations | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | UXNavigationFindabilityValidation | ArchitectureEngineeringFeedbackValidationTasks | TroubleshootingDiagnosisEngineering |