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| Criterion |  Operations 8D Problem Solving |  UX Research Personas |  UX Research Empathy Mapping |
|---|---|---|---|
Purposedifferent | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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 a lot is assumed about a target group but little is seen jointly, empathy mapping makes knowledge and gaps directly comparable. The picture also shows which assumptions hold up and where evidence is missing. |
Complexitydifferent | High | Medium | Low |
Timedifferent | 1-6 Wochen | 1-3 Tage | 30–60 min |
Participantsdifferent | 4-10 | Internes Team | 4-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Persona Profiles, Needs Summary, Scenario Notes | Empathy Map, Assumptions List, Research Gaps |
Tagsno overlap | QualityProblem solvingRoot cause | ResearchCustomerSynthesis | SynthesisQualitativeWorkshop |
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