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| Criterion |  Operations Ivy Lee Method |  Operations ALPEN Method |  Decision Making Pre-Mortem |  Operations Getting Things Done |
|---|---|---|---|---|
Purposedifferent | 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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 5-10 min daily | 10-20 min daily | 20–45 min | 1-2 h Setup, laufend |
Participantsdifferent | 1 | 1 | Small cross-functional group | 1 |
Formatdifferent | Async | Async | Workshop | Async |
Outputdifferent | Daily Priority List, Completion Notes | Daily Plan, Time Estimates, Review Notes | Risk list, Mitigation plan, Assumption log | Action Lists, Project List, Review Routine |
Tagsno overlap | PrioritizationProductivityExecution | PlanningTime managementProductivityOperations | RiskDecisionFailurePlanning | ProductivityPlanningTasksExecution |