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| Criterion |  Knowledge Modeling PARA Method |  Engineering Goal Question Metric |  Product Discovery Test Card |  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. | Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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 | Low | Medium |
Timedifferent | 1-3 h Setup, laufend | 90-180 min | 20-35 min | 1-5 Tage |
Participantsdifferent | 1 | 3-6 | 1-5 | Nutzertraffic |
Formatdifferent | Async | Workshop | Workshop + async | Async |
Outputdifferent | PARA Structure, Project Notes, Knowledge Archive | GQM Table, Metric Profiles | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | KnowledgeProductivityOrganization | MetricsMeasurementEngineeringAlignment | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |