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| Criterion |  Operations A3 Problem Solving |  Operations Ivy Lee Method |  Operations Fishbone Diagram |  Operations Eat the Frog |
|---|---|---|---|---|
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. | 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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | The method protects energy and attention for the task that creates the largest progress and is often postponed. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 45-90 min | 5-10 min daily | 30-60 min | 15-90 min daily |
Participantsdifferent | 2-5 | 1 | 2-8 | 1 |
Formatdifferent | Workshop + async | Async | Workshop | Async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Daily Priority List, Completion Notes | Fishbone Diagram, Cause Categories, Investigation Backlog | Priority Task, Completion Note, Daily Focus |
Tagsno overlap | LeanProblem solvingCoachingOperations | PrioritizationProductivityExecution | Root causeQualityOperations | PrioritizationProductivityFocusExecution |