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| Criterion |  Operations Gemba Walk |  Operations ABC Analysis |  Operations Getting Things Done |  Operations Ivy Lee Method |
|---|---|---|---|---|
Purposedifferent | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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 | Low | Low | Medium | Low |
Timedifferent | 30-120 min | 30-60 min | 1-2 h Setup, laufend | 5-10 min daily |
Participantsdifferent | 2-6 | 1-5 | 1 | 1 |
Formatdifferent | Workshop | Async | Async | Async |
Outputdifferent | Observation Notes, Improvement Ideas | ABC Classification, Focus Rules, Control List | Action Lists, Project List, Review Routine | Daily Priority List, Completion Notes |
Tagsno overlap | LeanObservationProcessOperations | PrioritizationOperationsPortfolio | ProductivityPlanningTasksExecution | PrioritizationProductivityExecution |