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| Criterion |  Operations Root Cause Tree Analysis |  Operations Gemba Walk |  Operations Standard Work Analysis |
|---|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. | 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 | Medium | Low | Medium |
Timedifferent | 1-3 h | 30-120 min | 1-3 h |
Participantsdifferent | 2-8 | 2-6 | 2-6 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Observation Notes, Improvement Ideas | Standard Work Sheet, Deviation List, Improved Standard, Training Needs |
Tagsno overlap | Root causeTreeIncidentQuality | LeanObservationProcessOperations | LeanProcessQuality |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
