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| Criterion |  Operations ABC Analysis |  Operations Change Analysis |  Operations Kepner-Tregoe |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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. |
Complexitydifferent | Low | Medium | High | Medium |
Timedifferent | 30-60 min | 45-120 min | 2-8 h | 45-90 min |
Participantsdifferent | 1-5 | 2-6 | 2-8 | 2-5 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ABC Classification, Focus Rules, Control List | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Problem Analysis, Decision Analysis, Risk Plan | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | PrioritizationOperationsPortfolio | ChangeRoot causeTroubleshootingComparison | Problem solvingRoot causeDecisionOperations | LeanProblem solvingCoachingOperations |