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| Criterion |  Decision Making Delphi Method |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making DACI |  Delivery RAID Log |
|---|---|---|---|---|
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. | 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. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. |
Complexitydifferent | High | High | Low | Low |
Timedifferent | 1-4 Wochen | Several meetings plus preparation and analysis; total effort depends on scope | 30-60 min | 30 min Setup, dann laufend |
Participantsdifferent | 6-30 Experten | Evaluation team, architects, and relevant stakeholders | 2-10 | 1-3 maintaining, briefing for everyone |
Formatdifferent | Async | Workshop + async | Workshop + async | Async |
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 | DACI Matrix, Decision Owner, Decision Log | RAID Log, Status Report Source |
Tagsno overlap | ForecastingExpertsDecisionStrategy | ArchitectureQualityRiskTradeoffsStakeholders | DecisionRolesGovernanceAlignment | RiskTrackingStakeholdersGovernance |