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| Criterion |  Operations A3 Problem Solving |  Innovation Lean Startup |  Operations 8D Problem Solving |
|---|---|---|---|
Purposedifferent | 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. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Medium | Medium | High |
Timedifferent | 45-90 min | Wochen bis Monate je Lernzyklus | 1-6 Wochen |
Participantsdifferent | 2-5 | 2-8 | 4-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | LeanProblem solvingCoachingOperations | LeanStartupValidationMVP | QualityProblem solvingRoot cause |
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