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| Criterion |  Systems Thinking Future Reality Tree |  Operations Gemba Walk |  Decision Making Force Field Analysis |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | In change initiatives, supporting and restraining forces sit at the table at the same time. Force Field Analysis makes these tensions explicit and shows where change can be pushed forward by strengthening or relieving. | 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. |
Complexitydifferent | High | Low | Low | Medium |
Timedifferent | 2-4 h | 30-120 min | 45-90 min | 45-90 min |
Participantsdifferent | 3-8 | 2-6 | 3-12 | 2-5 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Observation Notes, Improvement Ideas | Force Field Map, Change Levers, Risk Notes | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | LeanObservationProcessOperations | ChangeDecisionStrategy | LeanProblem solvingCoachingOperations |