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| Criterion |  Engineering Fault Isolation |  Systems Thinking Iceberg Model |  Operations Change Analysis |
|---|---|---|---|
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. | The Iceberg Model separates visible events from patterns, structures, and mental models. This turns a single observation into a deeper understanding of why a problem keeps recurring. | 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. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 30-180 min | 30-60 min | 45-120 min |
Participantsdifferent | 1-6 | 2-10 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | TroubleshootingDiagnosisEngineering | Systems thinkingRoot causePatterns | ChangeRoot causeTroubleshootingComparison |
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