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| Criterion |  Decision Making DACI |  Operations RACI Matrix |  Decision Making Argument Mapping |  Architecture Architecture Decision Record |
|---|---|---|---|---|
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. | With unclear responsibilities across several roles or areas, the method creates unambiguous accountability logic. It reduces friction because decision, execution, contribution, and information become separately visible. | When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 30-60 min | 45-90 min | 1-3 h | 15-45 min |
Participantsdifferent | 2-10 | 2-8 | 1-8 | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | DACI Matrix, Decision Owner, Decision Log | RACI Matrix, Responsibility Map, Decision Notes | Argument Map, Evidence Gaps, Decision Rationale | ADR File, Decision Log, Rationale |
Tagsno overlap | DecisionRolesGovernanceAlignment | RolesResponsibilityGovernanceOperations | SensemakingDecisionRationale | ArchitectureRationaleDocumentationGovernance |