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Selected:Three AmigosATAM (Architecture Tradeoff Analysis Method)Risk StormingAcceptance Criteria Workshop
| Criterion |  Agile Three Amigos |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture Risk Storming |  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. | 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. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | 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 | High | Low | Low |
Timedifferent | 15-30 min | Several meetings plus preparation and analysis; total effort depends on scope | 60-90 min | 20-40 min pro Story |
Participantsdifferent | 3 | Evaluation team, architects, and relevant stakeholders | 4-12 | 3-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Clarified Story, Test Examples, Open Questions | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Annotated Diagram, Prioritized Risk List, Action Backlog | Acceptance Criteria, Story Update |
Tagsno overlap | CollaborationBehavior-Driven DevelopmentQualityRefinement | ArchitectureQualityRiskTradeoffsStakeholders | RiskArchitectureWorkshopValidation | AgileRequirementsRefinementBehavior-Driven Development |