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| Criterion |  Decision Making Delphi Method |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Risk Matrix |  Facilitation Alignment Mapping |
|---|---|---|---|---|
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. | 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 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. | When several people work toward one goal but hold different mental maps, Alignment Mapping makes the discrepancies visible. It arranges goals, assumptions, and priorities so shared direction becomes verifiable. |
Complexitydifferent | High | High | Low | Medium |
Timedifferent | 1-4 Wochen | Several meetings plus preparation and analysis; total effort depends on scope | 30-60 min | 1-2 h |
Participantsdifferent | 6-30 Experten | Evaluation team, architects, and relevant stakeholders | 3-10 | 4-12 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Risk Matrix, Top Risk List | Alignment Map, Open Issues, Decision Questions |
Tagsno overlap | ForecastingExpertsDecisionStrategy | ArchitectureQualityRiskTradeoffsStakeholders | RiskDecisionPrioritizationAssessment | AlignmentStakeholdersStrategyFacilitation |