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| Criterion |  Engineering Fault Isolation |  Product Discovery Pretotyping |  Architecture Risk Storming |  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. | Pretotyping clarifies whether a customer problem and solution idea create enough real demand. It separates problem, assumption, solution, and evidence, and captures the result as a pretotyping sketch, test setup, and conversion data. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | 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 | Low | High |
Timedifferent | 30-180 min | Stunden bis wenige Tage | 60-90 min | Half day |
Participantsdifferent | 1-6 | 1-4 | 4-12 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Annotated Diagram, Prioritized Risk List, Action Backlog | Stress Test Report, Action Plan per Scenario |
Tagsno overlap | TroubleshootingDiagnosisEngineering | ValidationDemandMVP | RiskArchitectureWorkshopValidation | StrategyBusiness modelRiskDiagnosis |