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| Criterion |  Knowledge Modeling PARA Method |  Product Discovery Learning Card |  Operations Eat the Frog |  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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | The method protects energy and attention for the task that creates the largest progress and is often postponed. | 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 | Low | Low | Medium |
Timedifferent | 1-3 h Setup, laufend | 25-40 min | 15-90 min daily | 1-5 Tage |
Participantsdifferent | 1 | 1-5 | 1 | Nutzertraffic |
Formatdifferent | Async | Workshop + async | Async | Async |
Outputdifferent | PARA Structure, Project Notes, Knowledge Archive | Learning Card with evidence and next action | Priority Task, Completion Note, Daily Focus | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | KnowledgeProductivityOrganization | ExperimentsValidationDiscoveryLearning | PrioritizationProductivityFocusExecution | ValidationExperimentsDemandDiscovery |