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| Criterion |  Engineering Fault Isolation |  Systems Thinking Current Reality Tree |  Systems Thinking Behavior Over Time Graph |
|---|---|---|---|
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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | A Behavior Over Time Graph shows how a metric or observation develops over time. The method makes trends, breaks, and recurring patterns visible that get lost in snapshots. |
Complexitydifferent | Medium | High | Low |
Timedifferent | 30-180 min | 2-6 h | 20-45 min |
Participantsdifferent | 1-6 | 3-8 | 1-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Current Reality Tree, Core Problems, Intervention Ideas | Behavior Over Time Graph, Trend Hypotheses, Key Events |
Tagsno overlap | TroubleshootingDiagnosisEngineering | Systems thinkingRoot causeConstraintsCausality | Systems thinkingPatternsDynamics |
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