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Selected:Specification by ExampleAcceptance Criteria WorkshopATAM (Architecture Tradeoff Analysis Method)Three Amigos
| Criterion |  Agile Specification by Example |  Agile Acceptance Criteria Workshop |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Agile Three Amigos |
|---|---|---|---|---|
Purposedifferent | 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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | 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 | Medium | Low | High | Low |
Timedifferent | 60-90 min pro Feature | 20-40 min pro Story | Several meetings plus preparation and analysis; total effort depends on scope | 15-30 min |
Participantsdifferent | 3-6 | 3-6 | Evaluation team, architects, and relevant stakeholders | 3 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Example Table, Acceptance Tests | Acceptance Criteria, Story Update | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Clarified Story, Test Examples, Open Questions |
Tagsno overlap | AgileRequirementsExamplesBehavior-Driven Development | AgileRequirementsRefinementBehavior-Driven Development | ArchitectureQualityRiskTradeoffsStakeholders | CollaborationBehavior-Driven DevelopmentQualityRefinement |