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| Criterion |  Operations 8D Problem Solving |  Product Discovery Assumption Mapping |  Operations Change Analysis |
|---|---|---|---|
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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | 1-6 Wochen | 45-60 min | 45-120 min |
Participantsdifferent | 4-10 | 2-8 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Assumption map, Test backlog, Risk ranking | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | QualityProblem solvingRoot cause | AssumptionsRiskExperimentsValidation | ChangeRoot causeTroubleshootingComparison |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
