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| Criterion |  Systems Thinking Future Reality Tree |  Operations ALPEN Method |  Operations Gemba Walk |
|---|---|---|---|
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. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | 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. |
Complexitydifferent | High | Low | Low |
Timedifferent | 2-4 h | 10-20 min daily | 30-120 min |
Participantsdifferent | 3-8 | 1 | 2-6 |
Formatdifferent | Workshop | Async | Workshop |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Daily Plan, Time Estimates, Review Notes | Observation Notes, Improvement Ideas |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | PlanningTime managementProductivityOperations | LeanObservationProcessOperations |
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