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| Criterion |  UX Research Card Sorting |  Decision Making Pre-Mortem |  UX Research First-click Testing |  Decision Making Constraint Analysis |
|---|---|---|---|---|
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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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 an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 20-45 min | 20–45 min | 1-2 Tage | 30-90 min |
Participantsdifferent | Based on research question | Small cross-functional group | 10-30 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Content groups, Label set, IA hypotheses | Risk list, Mitigation plan, Assumption log | Click Heatmap, Success Rate, Design Recommendations | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries |
Tagsno overlap | Information architectureNavigationStructure | RiskDecisionFailurePlanning | UXNavigationFindabilityValidation | ConstraintsDecisionPlanningOptions |