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| Criterion |  Knowledge Modeling IBIS |  UX Research Affinity Diagramming |  Architecture Architecture Decision Record |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | 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. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | 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 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 | Low |
Timedifferent | 1-3 h | 45–90 min | 15-45 min | 30-60 min |
Participantsdifferent | 2-8 | 3-10 | 1-3 | 2-10 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Theme clusters, Insight statements, Opportunity areas | ADR File, Decision Log, Rationale | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | RationaleKnowledgeDecision | SynthesisQualitativeRoot cause | ArchitectureRationaleDocumentationGovernance | DecisionRolesGovernanceAlignment |