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| Criterion |  Engineering Fault Isolation |  Growth A/B Testing |  Business Strategy Value Chain Analysis |  Product Discovery Smoke 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 two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | Value Chain Analysis shows where value is created, costs accrue, and differentiation becomes possible along the process. It compares strengths, risks, market logic, and courses of action. The result is captured as a value-chain map and lever list. | 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. |
Complexitydifferent | Medium | High | High | Low |
Timedifferent | 30-180 min | 1-4 Wochen | Half day | 1-5 Tage |
Participantsdifferent | 1-6 | 1-6 | 3-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop | Async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Experiment results, Decision log, Learning summary | Value Chain Map, Lever List | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | TroubleshootingDiagnosisEngineering | ExperimentsGrowthAnalyticsValidation | StrategyBusiness modelDiagnosisAnalysis | ValidationExperimentsDemandGrowth |