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| Criterion |  Decision Making Three-Point Estimation |  Decision Making Delphi Method |  Architecture Request for Comments |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption Notes. | 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. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. | 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 | Medium | High | Medium | Low |
Timedifferent | 10-30 min je Item | 1-4 Wochen | 1-3 Wochen vom Draft bis zur Entscheidung | 30-60 min |
Participantsdifferent | 1-8 | 6-30 Experten | 3-20 Reviewer | 2-10 |
Formatdifferent | Workshop + async | Async | Async | Workshop + async |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | Expert Forecast, Consensus Range, Assumption Notes | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | EstimationUncertaintyForecasting | ForecastingExpertsDecisionStrategy | ArchitectureDecisionAsyncGovernance | DecisionRolesGovernanceAlignment |