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| Criterion |  Operations ABC Analysis |  Operations 5 Whys |  Operations Ivy Lee Method |
|---|---|---|---|
Purposedifferent | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 30-60 min | 15-30 min | 5-10 min daily |
Participantsdifferent | 1-5 | 2-6 | 1 |
Formatdifferent | Async | Workshop | Async |
Outputdifferent | ABC Classification, Focus Rules, Control List | Root cause notes, Countermeasures | Daily Priority List, Completion Notes |
Tagsno overlap | PrioritizationOperationsPortfolio | Root causeIncidentLeanProblem solving | PrioritizationProductivityExecution |
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