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| Criterion |  Operations A3 Problem Solving |  UX Research Personas |  UX Research Affinity Diagramming |  UX Research User Interviews |
|---|---|---|---|---|
Purposedifferent | 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. | When target groups stay too vague and teams talk about the same people differently, personas create a shared, solid picture of usage. Condensed profiles make needs, contexts, and differences tangible enough for decisions. | 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 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. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 45-90 min | 1-3 Tage | 45–90 min | 30–60 min per interview |
Participantsdifferent | 2-5 | Internes Team | 3-10 | 1 participant per interview |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Persona Profiles, Needs Summary, Scenario Notes | Theme clusters, Insight statements, Opportunity areas | Interview Notes, Themes, Insight Summary |
Tagsno overlap | LeanProblem solvingCoachingOperations | ResearchCustomerSynthesis | SynthesisQualitativeRoot cause | QualitativeResearchCustomerDiscovery |