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| Criterion | ![]() UX Research Empathy Mapping | ![]() UX Research Affinity Diagramming | ![]() Operations Root Cause Tree Analysis | ![]() Operations Barrier Analysis |
|---|---|---|---|---|
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 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 problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 30–60 min | 45–90 min | 1-3 h | 2-4 h |
Participantsdifferent | 4-8 | 3-10 | 2-8 | 2-6 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Empathy Map, Assumptions List, Research Gaps | Theme clusters, Insight statements, Opportunity areas | Cause Tree, Evidence Notes, Countermeasures | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | SynthesisQualitativeWorkshop | SynthesisQualitativeRoot cause | Root causeTreeIncidentQuality | Root causeSafetyIncident |



