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| Criterion |  Operations DMAIC |  Systems Thinking Current Reality Tree |  Systems Thinking Iceberg Model |
|---|---|---|---|
Purposedifferent | For a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. | 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. | 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 | High | High | Low |
Timedifferent | 2-12 Wochen | 2-6 h | 30-60 min |
Participantsdifferent | 3-10 | 3-8 | 2-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Current Reality Tree, Core Problems, Intervention Ideas | Iceberg Worksheet, Pattern Notes, Intervention Ideas |
Tagsno overlap | Continuous improvementQualityProcess improvement | Systems thinkingRoot causeConstraintsCausality | Systems thinkingRoot causePatterns |
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