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| Criterion |  Decision Making Delphi Method |  Decision Making Risk Matrix |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|
Purposedifferent | 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. | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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. |
Complexitydifferent | High | Low | High |
Timedifferent | 1-4 Wochen | 30-60 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 6-30 Experten | 3-10 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Risk Matrix, Top Risk List | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | ForecastingExpertsDecisionStrategy | RiskDecisionPrioritizationAssessment | ArchitectureQualityRiskTradeoffsStakeholders |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
