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| Criterion |  Innovation Design Thinking |  Operations Fishbone Diagram |  Operations Root Cause Tree Analysis |
|---|---|---|---|
Purposedifferent | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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 problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 1 Tag bis mehrere Wochen | 30-60 min | 1-3 h |
Participantsdifferent | 4-10 | 2-8 | 2-8 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Fishbone Diagram, Cause Categories, Investigation Backlog | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | InnovationPrototypeResearch | Root causeQualityOperations | Root causeTreeIncidentQuality |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
