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| Criterion |  UX Research First-click Testing |  UX Research Affinity Diagramming |  UX Research Card Sorting |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | When users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. | 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. | 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 single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 1-2 Tage | 45–90 min | 20-45 min | 15-30 min |
Participantsdifferent | 10-30 | 3-10 | Based on research question | 2-6 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop |
Outputdifferent | Click Heatmap, Success Rate, Design Recommendations | Theme clusters, Insight statements, Opportunity areas | Content groups, Label set, IA hypotheses | Root cause notes, Countermeasures |
Tagsno overlap | UXNavigationFindabilityValidation | SynthesisQualitativeRoot cause | Information architectureNavigationStructure | Root causeIncidentLeanProblem solving |