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| Criterion |  Product Strategy ICE Scoring |  Operations A3 Problem Solving |  Operations 5 Whys |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | 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 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. | 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. | 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. |
Complexitydifferent | Low | Medium | Low | High |
Timedifferent | 30-60 min | 45-90 min | 15-30 min | 2-8 h |
Participantsdifferent | 2-8 | 2-5 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | ICE Table, Top Idea List | A3 Report, Action Plan, Root Cause Analysis | Root cause notes, Countermeasures | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | PrioritizationScoringGrowthDecision | LeanProblem solvingCoachingOperations | Root causeIncidentLeanProblem solving | Problem solvingRoot causeDecisionOperations |