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| Criterion |  Operations Gemba Walk |  Operations Kepner-Tregoe |  Agile Specification by Example |
|---|---|---|---|
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 disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 30-120 min | 2-8 h | 60-90 min pro Feature |
Participantsdifferent | 2-6 | 2-8 | 3-6 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Problem Analysis, Decision Analysis, Risk Plan | Example Table, Acceptance Tests |
Tagsno overlap | LeanObservationProcessOperations | Problem solvingRoot causeDecisionOperations | AgileRequirementsExamplesBehavior-Driven Development |
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