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| Criterion |  Decision Making Delphi Method |  Architecture arc42 |  Decision Making DACI |
|---|---|---|---|
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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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. |
Complexitydifferent | High | Low | Low |
Timedifferent | 1-4 Wochen | 1-2 Tage | 30-60 min |
Participantsdifferent | 6-30 Experten | 1-4 | 2-10 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Architecture Document, Context View, Runtime View, Deployment View | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | ForecastingExpertsDecisionStrategy | ArchitectureDocumentationCommunication | DecisionRolesGovernanceAlignment |
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