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| Criterion |  Operations Gemba Walk |  Operations Process Mapping |  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. | With a confusing workflow that has many handoffs, the method makes the actual process visible. It shows where work is passed on, delayed, or duplicated, so improvement targets the right spots. | 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 | Medium | Medium | Low |
Timedifferent | 30-120 min | 1-3 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 | Process Map, Handoff List, Improvement Backlog | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | LeanObservationProcessOperations | ProcessOperationsImprovement | LeanProcessQuality | Root causeQualityOperations |