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| Criterion |  Decision Making Delphi Method |  Operations Ivy Lee Method |  Operations Getting Things Done |  Operations ALPEN Method |
|---|---|---|---|---|
Purposedifferent | 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. | 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 | High | Low | Medium | Low |
Timedifferent | 1-4 Wochen | 5-10 min daily | 1-2 h Setup, laufend | 10-20 min daily |
Participantsdifferent | 6-30 Experten | 1 | 1 | 1 |
Formatsame | Async | Async | Async | Async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Daily Priority List, Completion Notes | Action Lists, Project List, Review Routine | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | ForecastingExpertsDecisionStrategy | PrioritizationProductivityExecution | ProductivityPlanningTasksExecution | PlanningTime managementProductivityOperations |