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| Criterion |  Operations Gemba Walk |  Product Strategy RICE Scoring |  Operations A3 Problem Solving |  Product Strategy ICE Scoring |
|---|---|---|---|---|
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 many initiatives compete for the same resources, it brings reach, impact, confidence, and effort into one shared ranking. It makes prioritization economically connectable. | 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. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 30-120 min | 60-90 min | 45-90 min | 30-60 min |
Participantsdifferent | 2-6 | 2-10 | 2-5 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | RICE Scores, Ranked List, Assumption Log | A3 Report, Action Plan, Root Cause Analysis | ICE Table, Top Idea List |
Tagsno overlap | LeanObservationProcessOperations | PrioritizationScoringRoadmapTradeoffs | LeanProblem solvingCoachingOperations | PrioritizationScoringGrowthDecision |