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| Criterion |  Engineering Fault Isolation |  Product Discovery Riskiest Assumption Test |  Business Strategy Business Model Stress 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 an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. | A Business Model Stress Test checks how well a business model holds up under pressure and headwinds. It compares strengths, risks, market logic, and courses of action. The result is captured as a stress-test report and action plan per scenario. |
Complexitydifferent | Medium | Medium | High |
Timedifferent | 30-180 min | 1-2 Wochen pro Iteration | Half day |
Participantsdifferent | 1-6 | 2-6 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Prioritized Assumption List, Test Plan, Results Report | Stress Test Report, Action Plan per Scenario |
Tagsno overlap | TroubleshootingDiagnosisEngineering | ExperimentsValidationDiscoveryAssumptions | StrategyBusiness modelRiskDiagnosis |
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