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| Criterion |  Operations Fishbone Diagram |  Operations Fault Tree Analysis |  Agile Example Mapping |  Agile Three Amigos |
|---|---|---|---|---|
Purposedifferent | 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. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | When a story carries business rules and exceptions, it brings clarity before implementation. It makes examples, open questions, and boundaries visible enough that the logic becomes jointly sound. | 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. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 30-60 min | 2-6 h | 30-60 min | 15-30 min |
Participantsdifferent | 2-8 | 3-8 | 3-7 | 3 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Example Map, Acceptance Criteria, Open Questions | Clarified Story, Test Examples, Open Questions |
Tagsno overlap | Root causeQualityOperations | RiskRoot causeSafety | Behavior-Driven DevelopmentRequirementsExamplesRefinement | CollaborationBehavior-Driven DevelopmentQualityRefinement |