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| Criterion |  Operations Gemba Walk |  Agile Specification by Example |  Operations Fishbone Diagram |  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. | When business rules need to become precise, it ties language, example, and test together. It sorts work by value, risk, and delivery ability. The result is captured as an Example Table and Acceptance Tests. | 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. | 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 | Low | Medium |
Timedifferent | 30-120 min | 60-90 min pro Feature | 30-60 min | 1-3 h |
Participantsdifferent | 2-6 | 3-6 | 2-8 | 2-6 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Example Table, Acceptance Tests | Fishbone Diagram, Cause Categories, Investigation Backlog | Standard Work Sheet, Deviation List, Improved Standard, Training Needs |
Tagsno overlap | LeanObservationProcessOperations | AgileRequirementsExamplesBehavior-Driven Development | Root causeQualityOperations | LeanProcessQuality |