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| Criterion |  UX Research Tree Testing |  Decision Making Pre-Mortem |  UX Research First-click Testing |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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. | 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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-2 Tage | 20–45 min | 1-2 Tage | 45-90 min |
Participantsdifferent | Based on research question | Small cross-functional group | 10-30 | 2-8 |
Formatdifferent | Async | Workshop | Async | Workshop + async |
Outputdifferent | Findability Metrics, Path Analysis, Revised IA | Risk list, Mitigation plan, Assumption log | Click Heatmap, Success Rate, Design Recommendations | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | Information architectureNavigationFindability | RiskDecisionFailurePlanning | UXNavigationFindabilityValidation | AssumptionsRiskDecisionDiscovery |