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Selected:Architecture Decision RecordThree AmigosSpecification by ExampleAcceptance Criteria Workshop
| Criterion |  Architecture Architecture Decision Record |  Agile Three Amigos |  Agile Specification by Example |  Agile Acceptance Criteria Workshop |
|---|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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. | 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 | Low | Medium | Low |
Timedifferent | 15-45 min | 15-30 min | 60-90 min pro Feature | 20-40 min pro Story |
Participantsdifferent | 1-3 | 3 | 3-6 | 3-6 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Clarified Story, Test Examples, Open Questions | Example Table, Acceptance Tests | Acceptance Criteria, Story Update |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | CollaborationBehavior-Driven DevelopmentQualityRefinement | AgileRequirementsExamplesBehavior-Driven Development | AgileRequirementsRefinementBehavior-Driven Development |