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| Criterion |  Operations Ivy Lee Method |  Operations Eat the Frog |  Operations Gemba Walk |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | The method protects energy and attention for the task that creates the largest progress and is often postponed. | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 5-10 min daily | 15-90 min daily | 30-120 min | 45-90 min |
Participantsdifferent | 1 | 1 | 2-6 | 2-5 |
Formatdifferent | Async | Async | Workshop | Workshop + async |
Outputdifferent | Daily Priority List, Completion Notes | Priority Task, Completion Note, Daily Focus | Observation Notes, Improvement Ideas | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | PrioritizationProductivityExecution | PrioritizationProductivityFocusExecution | LeanObservationProcessOperations | LeanProblem solvingCoachingOperations |