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| Criterion |  UX Research Card Sorting |  Decision Making Pre-Mortem |  Product Discovery Assumption Mapping |  Growth A/B Testing |
|---|---|---|---|---|
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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. |
Complexitydifferent | Low | Low | Medium | High |
Timedifferent | 20-45 min | 20–45 min | 45-60 min | 1-4 Wochen |
Participantsdifferent | Based on research question | Small cross-functional group | 2-8 | 1-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Content groups, Label set, IA hypotheses | Risk list, Mitigation plan, Assumption log | Assumption map, Test backlog, Risk ranking | Experiment results, Decision log, Learning summary |
Tagsno overlap | Information architectureNavigationStructure | RiskDecisionFailurePlanning | AssumptionsRiskExperimentsValidation | ExperimentsGrowthAnalyticsValidation |