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| Criterion |  Knowledge Modeling PARA Method |  Product Discovery Fake Door Test |  Product Discovery Opportunity Solution Tree |
|---|---|---|---|
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 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. | When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 1-3 h Setup, laufend | 1-5 Tage | 1-2 h Setup, laufend |
Participantsdifferent | 1 | Nutzertraffic | 2-6 |
Formatdifferent | Async | Async | Workshop + async |
Outputdifferent | PARA Structure, Project Notes, Knowledge Archive | Click Data, Interest Signal, Learning Decision | Opportunity Solution Tree, Experiment Backlog, Learning Log |
Tagsno overlap | KnowledgeProductivityOrganization | ValidationExperimentsDemandDiscovery | DiscoveryOutcomesExperimentsOpportunity |
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