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| Criterion |  Engineering Fault Isolation |  Product Discovery Solution Interview |
|---|---|---|
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 solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. |
Complexitysame | Medium | Medium |
Timedifferent | 30-180 min | 30-60 min je Interview |
Participantsdifferent | 1-6 | 5-10 Interviews |
Formatsame | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Solution Feedback, Objection List, Validation Notes |
Tagsno overlap | TroubleshootingDiagnosisEngineering | ValidationInterviewsPrototype |
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