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| Criterion |  UX Research User Interviews |  UX Research Affinity Diagramming |  Facilitation Nominal Group Technique |  Facilitation Dot Voting |
|---|---|---|---|---|
Purposedifferent | 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. | When loud voices could dominate a round, Nominal Group Technique protects individual thinking time from group effects. It collects ideas separately first and only then enables shared weighting. | When a workshop has produced too many options and the group needs to condense quickly, dot voting makes preferences visible in a short time. It bundles individual votes into a solid signal for the next selection. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 30–60 min per interview | 45–90 min | 60-120 min | 5-15 min |
Participantsdifferent | 1 participant per interview | 3-10 | 5-12 | 3-20 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | Theme clusters, Insight statements, Opportunity areas | Ranked Ideas, Clarified Options, Group Priority | Ranked list, Consensus signal, Shortlist |
Tagsno overlap | QualitativeResearchCustomerDiscovery | SynthesisQualitativeRoot cause | FacilitationPrioritizationVotingInclusion | FacilitationVotingConsensusPrioritization |