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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Three-Point Estimation |
|---|---|---|
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. | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption Notes. |
Complexitydifferent | High | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 10-30 min je Item |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 1-8 |
Formatsame | Workshop + async | Workshop + async |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Three-Point Estimate, Risk Range, Assumption Notes |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | EstimationUncertaintyForecasting |
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