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| Criterion |  Operations Time Blocking |  Decision Making Delphi Method |  Operations Ivy Lee Method |  Operations Getting Things Done |
|---|---|---|---|---|
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. | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | 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 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 | High | Low | Medium |
Timedifferent | 15-30 min Planung, laufend | 1-4 Wochen | 5-10 min daily | 1-2 h Setup, laufend |
Participantsdifferent | 1 | 6-30 Experten | 1 | 1 |
Formatsame | Async | Async | Async | Async |
Outputdifferent | Blocked Calendar, Capacity View, Focus Plan | Expert Forecast, Consensus Range, Assumption Notes | Daily Priority List, Completion Notes | Action Lists, Project List, Review Routine |
Tagsno overlap | PlanningTime managementFocus | ForecastingExpertsDecisionStrategy | PrioritizationProductivityExecution | ProductivityPlanningTasksExecution |