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| Criterion |  Decision Making Delphi Method |  Decision Making DACI |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | 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 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 | Low | High | Medium |
Timedifferent | 1-4 Wochen | 30-60 min | Several meetings plus preparation and analysis; total effort depends on scope | 1-2 h |
Participantsdifferent | 6-30 Experten | 2-10 | Evaluation team, architects, and relevant stakeholders | 4-12 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | DACI Matrix, Decision Owner, Decision Log | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Alignment Map, Open Issues, Decision Questions |
Tagsno overlap | ForecastingExpertsDecisionStrategy | DecisionRolesGovernanceAlignment | ArchitectureQualityRiskTradeoffsStakeholders | AlignmentStakeholdersStrategyFacilitation |