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| Criterion |  Operations A3 Problem Solving |  Engineering Fault Isolation |  Engineering Goal Question Metric |
|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. | Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 45-90 min | 30-180 min | 90-180 min |
Participantsdifferent | 2-5 | 1-6 | 3-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | GQM Table, Metric Profiles |
Tagsno overlap | LeanProblem solvingCoachingOperations | TroubleshootingDiagnosisEngineering | MetricsMeasurementEngineeringAlignment |
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