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| Criterion |  Engineering Fault Isolation |  Operations A3 Problem Solving |  Innovation Lean Startup |  Business Strategy 5-Minuten VC-Check |
|---|---|---|---|---|
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 a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | The 5-Minute VC Check clarifies opportunities and strategic options at the earliest idea stage. It compares problem quality, customer willingness to pay, alternatives, differentiation, and market potential, and captures the result as a VC-check note, go/sharpen/park decision, and risk list. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 30-180 min | 45-90 min | Wochen bis Monate je Lernzyklus | 5-15 min |
Participantsdifferent | 1-6 | 2-5 | 2-8 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | A3 Report, Action Plan, Root Cause Analysis | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | VC-check note, Go/sharpen/park decision, Risk and assumption list, Next validation step |
Tagsno overlap | TroubleshootingDiagnosisEngineering | LeanProblem solvingCoachingOperations | LeanStartupValidationMVP | StartupValidationCompetition |