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| Criterion |  Operations A3 Problem Solving |  Operations ABC Analysis |  Engineering Goal Question Metric |  Operations 5 Whys |
|---|---|---|---|---|
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. | 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. | Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 45-90 min | 30-60 min | 90-180 min | 15-30 min |
Participantsdifferent | 2-5 | 1-5 | 3-6 | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | ABC Classification, Focus Rules, Control List | GQM Table, Metric Profiles | Root cause notes, Countermeasures |
Tagsno overlap | LeanProblem solvingCoachingOperations | PrioritizationOperationsPortfolio | MetricsMeasurementEngineeringAlignment | Root causeIncidentLeanProblem solving |