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| Criterion |  Operations A3 Problem Solving |  Product Strategy ICE Scoring |  Operations 5 Whys |  Operations ABC Analysis |
|---|---|---|---|---|
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. | When ideas need sorting quickly, it condenses impact, confidence, and effort into one compact score. It connects customer value, product logic, and decision priorities. The result is captured as an ICE table and top-ideas list. | 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. | 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 45-90 min | 30-60 min | 15-30 min | 30-60 min |
Participantsdifferent | 2-5 | 2-8 | 2-6 | 1-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | ICE Table, Top Idea List | Root cause notes, Countermeasures | ABC Classification, Focus Rules, Control List |
Tagsno overlap | LeanProblem solvingCoachingOperations | PrioritizationScoringGrowthDecision | Root causeIncidentLeanProblem solving | PrioritizationOperationsPortfolio |