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| Criterion |  Architecture Request for Comments |  Facilitation 3-Circle Venn Diagram |  Decision Making DACI |
|---|---|---|---|
Purposedifferent | 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. | When three perspectives matter at the same time, a Three-Circle Venn Diagram shows the overlaps and remainders precisely. It makes visible where shared effect arises and where only a partial perspective applies. | 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 | Low | Low |
Timedifferent | 1-3 Wochen vom Draft bis zur Entscheidung | 15-45 min | 30-60 min |
Participantsdifferent | 3-20 Reviewer | 2-8 | 2-10 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Venn Diagram, Overlap Notes, Differentiators | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | ArchitectureDecisionAsyncGovernance | ComparisonFacilitationAlignment | DecisionRolesGovernanceAlignment |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
