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| Criterion |  DevOps ChatOps |  Agile Specification by Example |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Agile Three Amigos |
|---|---|---|---|---|
Purposedifferent | For operational work in a distributed team, the method links communication with direct system control. It records decisions right where the signal, the context, and the execution come together. | 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. | 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 | Medium | High | Low |
Timedifferent | Ongoing | 60-90 min pro Feature | Several meetings plus preparation and analysis; total effort depends on scope | 15-30 min |
Participantsdifferent | 2-20 | 3-6 | Evaluation team, architects, and relevant stakeholders | 3 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Chat Transcript, Action Log, Automations | Example Table, Acceptance Tests | 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 | CollaborationEngineeringIncident | AgileRequirementsExamplesBehavior-Driven Development | ArchitectureQualityRiskTradeoffsStakeholders | CollaborationBehavior-Driven DevelopmentQualityRefinement |