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| Criterion |  Systems Thinking Stock and Flow Diagram |  Operations Getting Things Done |  Operations ALPEN Method |
|---|---|---|---|
Purposedifferent | A Stock and Flow Diagram shows how stocks, inflows, and outflows shape a system over time. It is especially suited when growth, delays, or capacity limits determine the dynamics. | With many open commitments and ideas in daily life, a reliable external storage system emerges. The method relieves the mind so priority and context don't have to compete in memory. | 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. |
Complexitydifferent | High | Medium | Low |
Timedifferent | 2-6 h | 1-2 h Setup, laufend | 10-20 min daily |
Participantsdifferent | 1-6 | 1 | 1 |
Formatdifferent | Workshop + async | Async | Async |
Outputdifferent | Stock and Flow Model, Dynamics Notes, Simulation Hypotheses | Action Lists, Project List, Review Routine | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | DynamicsSimulationFeedbackSystems thinking | ProductivityPlanningTasksExecution | PlanningTime managementProductivityOperations |
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