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| Criterion |  Engineering Fault Isolation |  Product Discovery Smoke Test |  Business Strategy VRIO Framework |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | 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. | The VRIO Framework rates resources and capabilities on whether they are Valuable, Rare, Inimitable, and Organized. It compares strengths, risks, market logic, and courses of action. The result is captured as a VRIO table and strategic actions. | 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 | Medium | Medium |
Timedifferent | 30-180 min | 1-5 Tage | 90-180 min | 1-5 Tage |
Participantsdifferent | 1-6 | Nutzertraffic | 3-6 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop | Async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Interest Metrics, Conversion Signal, Learning Note | VRIO Table, Strategic Actions | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | TroubleshootingDiagnosisEngineering | ValidationExperimentsDemandGrowth | StrategyDiagnosisBusiness modelCapability | ValidationExperimentsDemandDiscovery |