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| Criterion |  Operations Gemba Walk |  Operations Change Analysis |  Operations Standard Work Analysis |
|---|---|---|---|
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 deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 30-120 min | 45-120 min | 1-3 h |
Participantssame | 2-6 | 2-6 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Standard Work Sheet, Deviation List, Improved Standard, Training Needs |
Tagsno overlap | LeanObservationProcessOperations | ChangeRoot causeTroubleshootingComparison | LeanProcessQuality |
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