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| Criterion |  Decision Making DACI |  Decision Making Argument Mapping |  Knowledge Modeling IBIS |  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. | 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. | 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 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 | Medium | Medium | Low |
Timedifferent | 30-60 min | 1-3 h | 1-3 h | 15-45 min |
Participantsdifferent | 2-10 | 1-8 | 2-8 | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | DACI Matrix, Decision Owner, Decision Log | Argument Map, Evidence Gaps, Decision Rationale | Issue Map, Positions, Argument Notes | ADR File, Decision Log, Rationale |
Tagsno overlap | DecisionRolesGovernanceAlignment | SensemakingDecisionRationale | RationaleKnowledgeDecision | ArchitectureRationaleDocumentationGovernance |