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| Criterion |  Operations Failure Mode and Effects Analysis |  UX Research Card Sorting |  Operations Fault Tree Analysis |
|---|---|---|---|
Purposedifferent | 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 content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. | 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 | High | Low | High |
Timedifferent | 2-6 h | 20-45 min | 2-6 h |
Participantsdifferent | 3-10 | Based on research question | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | Content groups, Label set, IA hypotheses | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | RiskQualityOperationsRoot cause | Information architectureNavigationStructure | RiskRoot causeSafety |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
