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| Criterion |  Operations A3 Problem Solving |  Operations Kaizen Event |  Operations Eat the Frog |  Operations Ivy Lee Method |
|---|---|---|---|---|
Purposedifferent | 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. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | The method protects energy and attention for the task that creates the largest progress and is often postponed. | 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 | Medium | Medium | Low | Low |
Timedifferent | 45-90 min | 0.5-5 Tage | 15-90 min daily | 5-10 min daily |
Participantsdifferent | 2-5 | 4-10 | 1 | 1 |
Formatdifferent | Workshop + async | Workshop | Async | Async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Priority Task, Completion Note, Daily Focus | Daily Priority List, Completion Notes |
Tagsno overlap | LeanProblem solvingCoachingOperations | LeanContinuous improvementOperations | PrioritizationProductivityFocusExecution | PrioritizationProductivityExecution |