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| Criterion |  Decision Making DACI |  UX Research User Interviews |  Product Discovery Opportunity Interview |  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 opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. | 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 | Medium | Medium |
Timedifferent | 30-60 min | 30–60 min per interview | 30-60 min je Interview | 90-180 min |
Participantsdifferent | 2-10 | 1 participant per interview | 5-12 Interviews | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | DACI Matrix, Decision Owner, Decision Log | Interview Notes, Themes, Insight Summary | Interview Notes, Opportunity Themes, Customer Quotes | Decision Rights Matrix, Agreement |
Tagsno overlap | DecisionRolesGovernanceAlignment | QualitativeResearchCustomerDiscovery | DiscoveryInterviewsOpportunityCustomer | DecisionGovernanceAlignmentResponsibility |