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| Criterion |  UX Research Empathy Mapping |  Operations Fishbone Diagram |  Operations 8D Problem Solving |  UX Research Affinity Diagramming |
|---|---|---|---|---|
Purposedifferent | 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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | 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 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. |
Complexitydifferent | Low | Low | High | Low |
Timedifferent | 30–60 min | 30-60 min | 1-6 Wochen | 45–90 min |
Participantsdifferent | 4-8 | 2-8 | 4-10 | 3-10 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Empathy Map, Assumptions List, Research Gaps | Fishbone Diagram, Cause Categories, Investigation Backlog | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Theme clusters, Insight statements, Opportunity areas |
Tagsno overlap | SynthesisQualitativeWorkshop | Root causeQualityOperations | QualityProblem solvingRoot cause | SynthesisQualitativeRoot cause |