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| Criterion |  Operations Fault Tree Analysis |  Agile Example Mapping |  Agile Three Amigos |  Agile Specification by Example |
|---|---|---|---|---|
Purposedifferent | 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. | 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 | High | Low | Low | Medium |
Timedifferent | 2-6 h | 30-60 min | 15-30 min | 60-90 min pro Feature |
Participantsdifferent | 3-8 | 3-7 | 3 | 3-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Example Map, Acceptance Criteria, Open Questions | Clarified Story, Test Examples, Open Questions | Example Table, Acceptance Tests |
Tagsno overlap | RiskRoot causeSafety | Behavior-Driven DevelopmentRequirementsExamplesRefinement | CollaborationBehavior-Driven DevelopmentQualityRefinement | AgileRequirementsExamplesBehavior-Driven Development |