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| Criterion |  Operations DMAIC |  Systems Thinking Future Reality Tree |  Systems Thinking Soft Systems Methodology |
|---|---|---|---|
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 Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | Soft Systems Methodology helps explore unclear or politically charged problems systematically. Instead of forcing a quick answer, the method builds a shared understanding of perspectives and room for action. |
Complexitysame | High | High | High |
Timedifferent | 2-12 Wochen | 2-4 h | 0.5-3 Tage |
Participantsdifferent | 3-10 | 3-8 | 5-15 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Rich Picture, Root Definitions, Conceptual Models, Change Agenda |
Tagsno overlap | Continuous improvementQualityProcess improvement | Theory of ConstraintsSystems thinkingChange | Soft systemsComplexitySensemakingSystems thinking |
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