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| Criterion |  Agile Three Amigos |  Agile Acceptance Criteria Workshop |  Architecture arc42 |  Agile Specification by Example |
|---|---|---|---|---|
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. | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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 | Low | Medium |
Timedifferent | 15-30 min | 20-40 min pro Story | 1-2 Tage | 60-90 min pro Feature |
Participantsdifferent | 3 | 3-6 | 1-4 | 3-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Clarified Story, Test Examples, Open Questions | Acceptance Criteria, Story Update | Architecture Document, Context View, Runtime View, Deployment View | Example Table, Acceptance Tests |
Tagsno overlap | CollaborationBehavior-Driven DevelopmentQualityRefinement | AgileRequirementsRefinementBehavior-Driven Development | ArchitectureDocumentationCommunication | AgileRequirementsExamplesBehavior-Driven Development |