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| Criterion |  UX Research Affinity Diagramming |  Operations Failure Mode and Effects Analysis |  UX Research Empathy Mapping |  Operations Fault Tree Analysis |
|---|---|---|---|---|
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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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 a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. |
Complexitydifferent | Low | High | Low | High |
Timedifferent | 45–90 min | 2-6 h | 30–60 min | 2-6 h |
Participantsdifferent | 3-10 | 3-10 | 4-8 | 3-8 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Theme clusters, Insight statements, Opportunity areas | FMEA Table, Risk Priority, Mitigation Actions | Empathy Map, Assumptions List, Research Gaps | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | SynthesisQualitativeRoot cause | RiskQualityOperationsRoot cause | SynthesisQualitativeWorkshop | RiskRoot causeSafety |