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| Criterion |  UX Research Affinity Diagramming |  UX Research Empathy Mapping |  Operations Causal Factor Analysis |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
Purposedifferent | 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 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. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitydifferent | Low | Low | High | High |
Timedifferent | 45–90 min | 30–60 min | 2-6 h | 2-6 h |
Participantsdifferent | 3-10 | 4-8 | 3-10 | 3-8 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Theme clusters, Insight statements, Opportunity areas | Empathy Map, Assumptions List, Research Gaps | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | SynthesisQualitativeRoot cause | SynthesisQualitativeWorkshop | CausalityIncidentRoot causeTimeline | Systems thinkingRoot causeConstraintsCausality |