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| Criterion |  Knowledge Modeling PARA Method |  Product Discovery Smoke Test |  Operations Fishbone Diagram |  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 demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | 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 | 1-5 Tage | 30-60 min | 1-5 Tage |
Participantsdifferent | 1 | Nutzertraffic | 2-8 | Nutzertraffic |
Formatdifferent | Async | Async | Workshop | Async |
Outputdifferent | PARA Structure, Project Notes, Knowledge Archive | Interest Metrics, Conversion Signal, Learning Note | Fishbone Diagram, Cause Categories, Investigation Backlog | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | KnowledgeProductivityOrganization | ValidationExperimentsDemandGrowth | Root causeQualityOperations | ValidationExperimentsDemandDiscovery |