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| Criterion |  Systems Thinking Future Reality Tree |  Operations Ivy Lee Method |  Operations ALPEN Method |  Operations Eat the Frog |
|---|---|---|---|---|
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 a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | 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. | The method protects energy and attention for the task that creates the largest progress and is often postponed. |
Complexitydifferent | High | Low | Low | Low |
Timedifferent | 2-4 h | 5-10 min daily | 10-20 min daily | 15-90 min daily |
Participantsdifferent | 3-8 | 1 | 1 | 1 |
Formatdifferent | Workshop | Async | Async | Async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Daily Priority List, Completion Notes | Daily Plan, Time Estimates, Review Notes | Priority Task, Completion Note, Daily Focus |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | PrioritizationProductivityExecution | PlanningTime managementProductivityOperations | PrioritizationProductivityFocusExecution |