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| Criterion |  Knowledge Modeling PARA Method |  UX Research Surveys |  Growth A/B Testing |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | The PARA Method organizes knowledge into Projects, Areas, Resources, and Archives. It creates order when digital notes, files, and tasks no longer cleanly fit current work. | When a topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | 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. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 1-3 h Setup, laufend | 3-14 Tage | 1-4 Wochen | 1-5 Tage |
Participantsdifferent | 1 | 50+ | 1-6 | Nutzertraffic |
Formatsame | Async | Async | Async | Async |
Outputdifferent | PARA Structure, Project Notes, Knowledge Archive | Survey Results, Charts, Segment Insights | Experiment results, Decision log, Learning summary | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | KnowledgeProductivityOrganization | QuantitativeResearchValidation | ExperimentsGrowthAnalyticsValidation | ValidationExperimentsDemandDiscovery |