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| Criterion |  Operations Gemba Walk |  Knowledge Modeling Domain Storytelling |  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. | Domain Storytelling translates domain knowledge into a shared narrative of actors, objects, and workflows. It is especially useful when language, rules, and process understanding must be tightly connected. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 30-120 min | 1-2 h | 30-60 min |
Participantsdifferent | 2-6 | 2-8 | 2-8 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Domain Story, Glossary Notes, Process Narrative | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | LeanObservationProcessOperations | KnowledgeDomain-Driven DesignProcess | Root causeQualityOperations |
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