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| Criterion |  UX Research Tree Testing |  UX Research First-click Testing |  Decision Making Pre-Mortem |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | When a navigation exists but search paths still fail, tree testing checks findability without visual distraction. The method shows whether labels, levels, and paths really lead to the intended destination. | 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. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-2 Tage | 1-2 Tage | 20–45 min | 45-60 min |
Participantsdifferent | Based on research question | 10-30 | Small cross-functional group | 2-8 |
Formatdifferent | Async | Async | Workshop | Workshop + async |
Outputdifferent | Findability Metrics, Path Analysis, Revised IA | Click Heatmap, Success Rate, Design Recommendations | Risk list, Mitigation plan, Assumption log | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | Information architectureNavigationFindability | UXNavigationFindabilityValidation | RiskDecisionFailurePlanning | AssumptionsRiskExperimentsValidation |