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| Criterion |  UX Design Customer Journey Canvas |  Engineering Fault Isolation |  Operations Change Analysis |
|---|---|---|---|
Purposedifferent | When a journey needs to be understood across several phases, it arranges experience, touchpoints, and opportunities into one picture. It makes gaps and friction along the user path clear. | 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. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-3 h | 30-180 min | 45-120 min |
Participantsdifferent | 3-10 | 1-6 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Customer Journey Canvas, Pain Points, Experience Opportunities | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | JourneyCustomerService designCanvas | TroubleshootingDiagnosisEngineering | ChangeRoot causeTroubleshootingComparison |
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