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| Criterion |  Product Strategy RICE Scoring |  Operations 5 Whys |  Product Strategy ICE Scoring |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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 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. | 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 an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Medium | Low | Low | High |
Timedifferent | 60-90 min | 15-30 min | 30-60 min | 1-6 Wochen |
Participantsdifferent | 2-10 | 2-6 | 2-8 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | RICE Scores, Ranked List, Assumption Log | Root cause notes, Countermeasures | ICE Table, Top Idea List | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | PrioritizationScoringRoadmapTradeoffs | Root causeIncidentLeanProblem solving | PrioritizationScoringGrowthDecision | QualityProblem solvingRoot cause |