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| Criterion |  Innovation Crazy 8s |  Operations Fishbone Diagram |  Operations Kepner-Tregoe |
|---|---|---|---|
Purposedifferent | With only a few minutes available and a still-fuzzy solution search, the method forces a wide range of variants. It produces fast sketches before the first idea can settle in, making different directions directly comparable and open to further development. | 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 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 |
Timedifferent | 8-15 min | 30-60 min | 2-8 h |
Participantsdifferent | 1-10 | 2-8 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Sketch Set, Idea Shortlist, Direction Options | Fishbone Diagram, Cause Categories, Investigation Backlog | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | BrainstormingSketchingSpeedDivergenceDesign sprint | Root causeQualityOperations | Problem solvingRoot causeDecisionOperations |
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