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| Criterion |  Operations Gemba Walk |  Product Strategy ICE Scoring |  Product Strategy RICE Scoring |  Decision Making Decision Matrix |
|---|---|---|---|---|
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. | When many initiatives compete for the same resources, it brings reach, impact, confidence, and effort into one shared ranking. It makes prioritization economically connectable. | When several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 30-120 min | 30-60 min | 60-90 min | 45-90 min |
Participantsdifferent | 2-6 | 2-8 | 2-10 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | ICE Table, Top Idea List | RICE Scores, Ranked List, Assumption Log | Decision Matrix, Scoring Rationale, Selected Option |
Tagsno overlap | LeanObservationProcessOperations | PrioritizationScoringGrowthDecision | PrioritizationScoringRoadmapTradeoffs | DecisionCriteriaScoringTradeoffs |