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| Criterion |  Operations Fault Tree Analysis |  Agile Acceptance Criteria Workshop |  Agile Three Amigos |
|---|---|---|---|
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 needs clear checkpoints before implementation, it sharpens expectation and scope together. It sorts work by value, risk, and delivery ability. The result is captured as Acceptance Criteria and a Story Update. | 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 | High | Low | Low |
Timedifferent | 2-6 h | 20-40 min pro Story | 15-30 min |
Participantsdifferent | 3-8 | 3-6 | 3 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Acceptance Criteria, Story Update | Clarified Story, Test Examples, Open Questions |
Tagsno overlap | RiskRoot causeSafety | AgileRequirementsRefinementBehavior-Driven Development | CollaborationBehavior-Driven DevelopmentQualityRefinement |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
