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| Criterion |  Decision Making DACI |  UX Research User Interviews |  UX Research Affinity Diagramming |  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 teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | 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. | 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 | 30–60 min per interview | 45–90 min | 90-180 min |
Participantsdifferent | 2-10 | 1 participant per interview | 3-10 | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | DACI Matrix, Decision Owner, Decision Log | Interview Notes, Themes, Insight Summary | Theme clusters, Insight statements, Opportunity areas | Decision Rights Matrix, Agreement |
Tagsno overlap | DecisionRolesGovernanceAlignment | QualitativeResearchCustomerDiscovery | SynthesisQualitativeRoot cause | DecisionGovernanceAlignmentResponsibility |