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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Facilitation Nominal Group Technique |
|---|---|---|
Purposedifferent | 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 loud voices could dominate a round, Nominal Group Technique protects individual thinking time from group effects. It collects ideas separately first and only then enables shared weighting. |
Complexitydifferent | High | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 60-120 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 5-12 |
Formatdifferent | Workshop + async | Workshop |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Ranked Ideas, Clarified Options, Group Priority |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | FacilitationPrioritizationVotingInclusion |
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