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| Criterion |  Operations Fault Tree Analysis |  UX Research Affinity Diagramming |  Knowledge Modeling Concept Mapping |
|---|---|---|---|
Purposedifferent | 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. | 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. | Concept Mapping arranges terms and relationships in a network that makes subject-matter connections tangible. It fits when a topic needs to be understood structurally rather than linearly. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 2-6 h | 45–90 min | 1-2 h |
Participantsdifferent | 3-8 | 3-10 | 1-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Theme clusters, Insight statements, Opportunity areas | Concept Map, Relationship Labels, Knowledge Gaps |
Tagsno overlap | RiskRoot causeSafety | SynthesisQualitativeRoot cause | KnowledgeConceptsMappingSensemaking |
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