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| Criterion |  UX Research User Interviews |  UX Research Affinity Diagramming |  Operations A3 Problem Solving |  Operations Kepner-Tregoe |
|---|---|---|---|---|
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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Low | Low | Medium | High |
Timedifferent | 30–60 min per interview | 45–90 min | 45-90 min | 2-8 h |
Participantsdifferent | 1 participant per interview | 3-10 | 2-5 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Theme clusters, Insight statements, Opportunity areas | A3 Report, Action Plan, Root Cause Analysis | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | QualitativeResearchCustomerDiscovery | SynthesisQualitativeRoot cause | LeanProblem solvingCoachingOperations | Problem solvingRoot causeDecisionOperations |