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| Criterion |  Operations 8D Problem Solving |  Operations Root Cause Analysis |  Product Discovery MVP Test Matrix |
|---|---|---|---|
Purposedifferent | 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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | 1-6 Wochen | 1-4 h | 45-75 min |
Participantsdifferent | 4-10 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Test Matrix, Test Plan |
Tagsno overlap | QualityProblem solvingRoot cause | Root causeProblem solvingQualityIncident | ExperimentsValidationDiscoveryOptions |
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