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| Criterion |  Operations Gemba Walk |  Product Strategy ICE Scoring |  Operations A3 Problem Solving |  Operations ABC Analysis |
|---|---|---|---|---|
Purposedifferent | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | 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. | 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 | Low | Low | Medium | Low |
Timedifferent | 30-120 min | 30-60 min | 45-90 min | 30-60 min |
Participantsdifferent | 2-6 | 2-8 | 2-5 | 1-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Async |
Outputdifferent | Observation Notes, Improvement Ideas | ICE Table, Top Idea List | A3 Report, Action Plan, Root Cause Analysis | ABC Classification, Focus Rules, Control List |
Tagsno overlap | LeanObservationProcessOperations | PrioritizationScoringGrowthDecision | LeanProblem solvingCoachingOperations | PrioritizationOperationsPortfolio |