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| Criterion |  Decision Making DACI |  Decision Making Constraint Analysis |  Architecture Architecture Decision Record |  Decision Making Decision Rights Mapping |
|---|---|---|---|---|
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 an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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. | In organizations with many stakeholders, it often blurs who actually decides and who is merely consulted. It separates options, evaluation criteria, and open risks. The result is captured as a Decision Rights matrix and an agreement. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 30-60 min | 30-90 min | 15-45 min | 90-180 min |
Participantsdifferent | 2-10 | 2-8 | 1-3 | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | DACI Matrix, Decision Owner, Decision Log | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | ADR File, Decision Log, Rationale | Decision Rights Matrix, Agreement |
Tagsno overlap | DecisionRolesGovernanceAlignment | ConstraintsDecisionPlanningOptions | ArchitectureRationaleDocumentationGovernance | DecisionGovernanceAlignmentResponsibility |