View methods side by side.
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| Criterion |  Operations Getting Things Done |  Operations ALPEN Method |  Operations Theory of Constraints |  Operations After-Action Review |
|---|---|---|---|---|
Purposedifferent | 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. | For a system that does not get faster despite effort, the method directs attention to the bottleneck. It concentrates improvement on the point that actually limits throughput. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 1-2 h Setup, laufend | 10-20 min daily | 2-4 h Analyse, laufend | 20-45 min |
Participantsdifferent | 1 | 1 | 3-12 | 3-12 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | Action Lists, Project List, Review Routine | Daily Plan, Time Estimates, Review Notes | Constraint Map, Improvement Plan, Flow Metrics | Lessons learned, Action items, Event summary |
Tagsno overlap | ProductivityPlanningTasksExecution | PlanningTime managementProductivityOperations | OperationsConstraintsFlowImprovement | LearningOperationsImprovement |