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| Criterion |  Operations Change Analysis |  Systems Thinking Systems Mapping |  Engineering Fault Isolation |  Systems Thinking Iceberg Model |
|---|---|---|---|---|
Purposedifferent | 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. | Systems Mapping arranges elements, relationships, and boundaries so a complex field becomes legible at a glance. The overview stabilizes the overall picture before detail work or steering begins. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 45-120 min | 1-3 h | 30-180 min | 30-60 min |
Participantsdifferent | 2-6 | 3-12 | 1-6 | 2-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | System Map, Dependencies, Leverage Points | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Iceberg Worksheet, Pattern Notes, Intervention Ideas |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | Systems thinkingMappingBoundariesChange | TroubleshootingDiagnosisEngineering | Systems thinkingRoot causePatterns |