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| Criterion |  Operations Fishbone Diagram |  Innovation Morphological Analysis |  Operations Kepner-Tregoe |
|---|---|---|---|
Purposedifferent | 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 search for solutions with many degrees of freedom, a grid emerges for systematic combinations. The method separates features, variants, and exclusion criteria, so the space gets explored deliberately. | 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 | Medium | High |
Timedifferent | 30-60 min | 1-3 h | 2-8 h |
Participantssame | 2-8 | 2-8 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Morphological Box, Concept Combinations, Idea Shortlist | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | Root causeQualityOperations | IdeationInnovationCreativity | Problem solvingRoot causeDecisionOperations |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
