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| Criterion |  UX Research First-click Testing |  Operations Fault Tree Analysis |  Product Discovery Assumption Mapping |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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 | Low | High | Medium | Low |
Timedifferent | 1-2 Tage | 2-6 h | 45-60 min | 45-90 min |
Participantsdifferent | 10-30 | 3-8 | 2-8 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Click Heatmap, Success Rate, Design Recommendations | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Assumption map, Test backlog, Risk ranking | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | UXNavigationFindabilityValidation | RiskRoot causeSafety | AssumptionsRiskExperimentsValidation | AssumptionsRiskDecisionDiscovery |