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| Criterion |  Decision Making DACI |  Knowledge Modeling IBIS |  Architecture Request for Comments |
|---|---|---|---|
Purposedifferent | 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. | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | 30-60 min | 1-3 h | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 2-10 | 2-8 | 3-20 Reviewer |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | DACI Matrix, Decision Owner, Decision Log | Issue Map, Positions, Argument Notes | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tags1 shared | DecisionRolesGovernanceAlignment | RationaleKnowledgeDecision | ArchitectureDecisionAsyncGovernance |
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