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| Criterion |  Operations A3 Problem Solving |  Systems Thinking Future Reality Tree |  Operations Kaizen Event |
|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit 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. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. |
Complexitydifferent | Medium | High | Medium |
Timedifferent | 45-90 min | 2-4 h | 0.5-5 Tage |
Participantsdifferent | 2-5 | 3-8 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update |
Tagsno overlap | LeanProblem solvingCoachingOperations | Theory of ConstraintsSystems thinkingChange | LeanContinuous improvementOperations |
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