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| Criterion |  Operations Gemba Walk |  Agile Three Amigos |  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. | When story, test, and implementation could drift apart, it brings business perspective, engineering, and quality together early. It prevents a story from being read differently only late in the process. | 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 | Low | Medium |
Timedifferent | 30-120 min | 15-30 min | 60-90 min pro Feature |
Participantsdifferent | 2-6 | 3 | 3-6 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Clarified Story, Test Examples, Open Questions | Example Table, Acceptance Tests |
Tagsno overlap | LeanObservationProcessOperations | CollaborationBehavior-Driven DevelopmentQualityRefinement | AgileRequirementsExamplesBehavior-Driven Development |
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