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| Criterion |  UX Research Card Sorting |  Growth A/B Testing |  Innovation Design Thinking |  Product Discovery Smoke Test |
|---|---|---|---|---|
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. | 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. | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. |
Complexitydifferent | Low | High | High | Low |
Timedifferent | 20-45 min | 1-4 Wochen | 1 Tag bis mehrere Wochen | 1-5 Tage |
Participantsdifferent | Based on research question | 1-6 | 4-10 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop | Async |
Outputdifferent | Content groups, Label set, IA hypotheses | Experiment results, Decision log, Learning summary | Problem Statement, Prototype, Test Learnings | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | Information architectureNavigationStructure | ExperimentsGrowthAnalyticsValidation | InnovationPrototypeResearch | ValidationExperimentsDemandGrowth |