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| Criterion |  Product Strategy ICE Scoring |  Operations Change Analysis |  Operations 5 Whys |  Operations 8D Problem Solving |
|---|---|---|---|---|
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 deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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 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 | Low | Medium | Low | High |
Timedifferent | 30-60 min | 45-120 min | 15-30 min | 1-6 Wochen |
Participantsdifferent | 2-8 | 2-6 | 2-6 | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | ICE Table, Top Idea List | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Root cause notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | PrioritizationScoringGrowthDecision | ChangeRoot causeTroubleshootingComparison | Root causeIncidentLeanProblem solving | QualityProblem solvingRoot cause |