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| Criterion |  Decision Making Wideband Delphi |  Decision Making Delphi Method |  Architecture Request for Comments |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus 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 | High | High | Medium | Low |
Timedifferent | 1-4 h or multiple rounds | 1-4 Wochen | 1-3 Wochen vom Draft bis zur Entscheidung | 30-60 min |
Participantsdifferent | 4-12 Experten | 6-30 Experten | 3-20 Reviewer | 2-10 |
Formatdifferent | Workshop + async | Async | Async | Workshop + async |
Outputdifferent | Estimate Range, Assumption Log, Expert Consensus 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 | EstimationExpertsForecasting | ForecastingExpertsDecisionStrategy | ArchitectureDecisionAsyncGovernance | DecisionRolesGovernanceAlignment |