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| Criterion |  UX Research First-click Testing |  Operations Fault Tree Analysis |  Product Discovery Test Card |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | High | Low | Medium |
Timedifferent | 1-2 Tage | 2-6 h | 20-35 min | 45-60 min |
Participantsdifferent | 10-30 | 3-8 | 1-5 | 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 | Test Card with a pre-set threshold | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | UXNavigationFindabilityValidation | RiskRoot causeSafety | ExperimentsValidationDiscoveryHypothesis | AssumptionsRiskExperimentsValidation |