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Selected:ATAM (Architecture Tradeoff Analysis Method)Three-Point EstimationDelphi MethodPERT Estimation
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Three-Point Estimation |  Decision Making Delphi Method |  Decision Making PERT 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. | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. |
Complexitydifferent | High | Medium | High | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 10-30 min je Item | 1-4 Wochen | 15-45 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 1-8 | 6-30 Experten | 1-8 |
Formatdifferent | Workshop + async | Workshop + async | 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 | Expert Forecast, Consensus Range, Assumption Notes | PERT Estimate, Expected Value, Risk Notes |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | EstimationUncertaintyForecasting | ForecastingExpertsDecisionStrategy | EstimationUncertaintyRisk |