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| Criterion |  Operations Time Blocking |  Decision Making PERT Estimation |  Operations Getting Things Done |  Operations ALPEN Method |
|---|---|---|---|---|
Purposedifferent | With a calendar that grows on request, the method makes available time explicit again. It combines appointments, focus work, and buffer into a more realistic day structure. | 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. | 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 | Low | Medium | Medium | Low |
Timedifferent | 15-30 min Planung, laufend | 15-45 min | 1-2 h Setup, laufend | 10-20 min daily |
Participantsdifferent | 1 | 1-8 | 1 | 1 |
Formatdifferent | Async | Workshop + async | Async | Async |
Outputdifferent | Blocked Calendar, Capacity View, Focus Plan | PERT Estimate, Expected Value, Risk Notes | Action Lists, Project List, Review Routine | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | PlanningTime managementFocus | EstimationUncertaintyRisk | ProductivityPlanningTasksExecution | PlanningTime managementProductivityOperations |