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| Criterion |  Engineering Fault Isolation |  Operations PDCA Cycle |  Product Discovery Assumption Mapping |  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. | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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 | Low | Medium | High |
Timedifferent | 30-180 min | 1 h bis mehrere Wochen | 45-60 min | Half day |
Participantsdifferent | 1-6 | 1-8 | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | Assumption map, Test backlog, Risk ranking | Stress Test Report, Action Plan per Scenario |
Tagsno overlap | TroubleshootingDiagnosisEngineering | Continuous improvementLeanExperiments | AssumptionsRiskExperimentsValidation | StrategyBusiness modelRiskDiagnosis |