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| Criterion |  UX Research Card Sorting |  Operations Failure Mode and Effects Analysis |  Operations Scatter Diagram |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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 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 the question is whether two measures are related, the method makes patterns in the data picture visible. It separates felt correlations from relationships that actually show up in the data. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Low | High | Low | High |
Timedifferent | 20-45 min | 2-6 h | 30-90 min | 1-6 Wochen |
Participantsdifferent | Based on research question | 3-10 | 1-4 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | FMEA Table, Risk Priority, Mitigation Actions | Scatter Plot, Korrelationsnotiz, Hypothesenliste | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Information architectureNavigationStructure | RiskQualityOperationsRoot cause | Root causeQualityVisualization | QualityProblem solvingRoot cause |