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| Criterion |  Operations Standard Work Analysis |  Operations Ivy Lee Method |  Operations Gemba Walk |  Operations ABC Analysis |
|---|---|---|---|---|
Purposedifferent | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. | 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 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-3 h | 5-10 min daily | 30-120 min | 30-60 min |
Participantsdifferent | 2-6 | 1 | 2-6 | 1-5 |
Formatdifferent | Workshop | Async | Workshop | Async |
Outputdifferent | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | Daily Priority List, Completion Notes | Observation Notes, Improvement Ideas | ABC Classification, Focus Rules, Control List |
Tagsno overlap | LeanProcessQuality | PrioritizationProductivityExecution | LeanObservationProcessOperations | PrioritizationOperationsPortfolio |