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| Criterion |  UX Research Usability Testing |  UX Research Affinity Diagramming |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
Purposedifferent | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | 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. |
Complexitydifferent | Medium | Low | High |
Timedifferent | 1-2 h je Session | 45–90 min | 2-6 h |
Participantsdifferent | Based on research question | 3-10 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Usability Issues, Severity List, Recommendations | Theme clusters, Insight statements, Opportunity areas | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | ValidationUXPrototype | SynthesisQualitativeRoot cause | RiskQualityOperationsRoot cause |
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