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| Criterion |  Engineering Fault Isolation |  UX Research Usability Testing |
|---|---|---|
Purposedifferent | 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. | 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. |
Complexitysame | Medium | Medium |
Timedifferent | 30-180 min | 1-2 h je Session |
Participantsdifferent | 1-6 | Based on research question |
Formatsame | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Usability Issues, Severity List, Recommendations |
Tagsno overlap | TroubleshootingDiagnosisEngineering | ValidationUXPrototype |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
