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| Criterion |  Agile Three Amigos |  Knowledge Modeling IBIS |  Agile Specification by Example |  Agile Acceptance Criteria Workshop |
|---|---|---|---|---|
Purposedifferent | 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. | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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. | 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. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 15-30 min | 1-3 h | 60-90 min pro Feature | 20-40 min pro Story |
Participantsdifferent | 3 | 2-8 | 3-6 | 3-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Clarified Story, Test Examples, Open Questions | Issue Map, Positions, Argument Notes | Example Table, Acceptance Tests | Acceptance Criteria, Story Update |
Tagsno overlap | CollaborationBehavior-Driven DevelopmentQualityRefinement | RationaleKnowledgeDecision | AgileRequirementsExamplesBehavior-Driven Development | AgileRequirementsRefinementBehavior-Driven Development |