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| Criterion |  UX Research Card Sorting |  Architecture C4 Model |  Operations Failure Mode and Effects Analysis |  Operations Scatter Diagram |
|---|---|---|---|---|
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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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. |
Complexitydifferent | Low | Low | High | Low |
Timedifferent | 20-45 min | 1-4 h | 2-6 h | 30-90 min |
Participantsdifferent | Based on research question | 1-5 | 3-10 | 1-4 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Context Diagram, Container Diagram, Component Diagram | FMEA Table, Risk Priority, Mitigation Actions | Scatter Plot, Korrelationsnotiz, Hypothesenliste |
Tagsno overlap | Information architectureNavigationStructure | ArchitectureCommunicationVisualization | RiskQualityOperationsRoot cause | Root causeQualityVisualization |