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| Criterion |  Decision Making PERT Estimation |  Operations Weekly Review |  Operations Getting Things Done |  Operations Ivy Lee Method |
|---|---|---|---|---|
Purposedifferent | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | In a week with many open loops, the method creates distance from operational noise. It organizes commitments, calendar, and projects so the next week becomes workable. | 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 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. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 15-45 min | 30-60 min | 1-2 h Setup, laufend | 5-10 min daily |
Participantsdifferent | 1-8 | 1 | 1 | 1 |
Formatdifferent | Workshop + async | Async | Async | Async |
Outputdifferent | PERT Estimate, Expected Value, Risk Notes | Updated Task System, Weekly Focus, Next Actions | Action Lists, Project List, Review Routine | Daily Priority List, Completion Notes |
Tagsno overlap | EstimationUncertaintyRisk | ProductivityExecutionPlanning | ProductivityPlanningTasksExecution | PrioritizationProductivityExecution |