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| Criterion |  Systems Thinking Future Reality Tree |  Operations ALPEN Method |  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. | 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. | 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 | Medium |
Timedifferent | 2-4 h | 10-20 min daily | 45-90 min |
Participantsdifferent | 3-8 | 1 | 2-5 |
Formatdifferent | Workshop | Async | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Daily Plan, Time Estimates, Review Notes | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | PlanningTime managementProductivityOperations | LeanProblem solvingCoachingOperations |
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