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| Criterion |  Product Strategy ICE Scoring |  Operations Fishbone Diagram |  Operations Failure Mode and Effects Analysis |  Operations Kepner-Tregoe |
|---|---|---|---|---|
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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Low | Low | High | High |
Timedifferent | 30-60 min | 30-60 min | 2-6 h | 2-8 h |
Participantsdifferent | 2-8 | 2-8 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | ICE Table, Top Idea List | Fishbone Diagram, Cause Categories, Investigation Backlog | FMEA Table, Risk Priority, Mitigation Actions | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | PrioritizationScoringGrowthDecision | Root causeQualityOperations | RiskQualityOperationsRoot cause | Problem solvingRoot causeDecisionOperations |