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| Criterion |  Operations Gemba Walk |  Operations Failure Mode and Effects Analysis |  Operations Standard Work Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
Purposedifferent | 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 process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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. | 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. |
Complexitydifferent | Low | High | Medium | Low |
Timedifferent | 30-120 min | 2-6 h | 1-3 h | 30-60 min |
Participantsdifferent | 2-6 | 3-10 | 2-6 | 2-8 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | FMEA Table, Risk Priority, Mitigation Actions | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | LeanObservationProcessOperations | RiskQualityOperationsRoot cause | LeanProcessQuality | Root causeQualityOperations |