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| Criterion |  Operations Fishbone Diagram |  Innovation Design Thinking |  Operations 5 Whys |
|---|---|---|---|
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 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. | 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. |
Complexitydifferent | Low | High | Low |
Timedifferent | 30-60 min | 1 Tag bis mehrere Wochen | 15-30 min |
Participantsdifferent | 2-8 | 4-10 | 2-6 |
Formatsame | Workshop | Workshop | Workshop |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Problem Statement, Prototype, Test Learnings | Root cause notes, Countermeasures |
Tagsno overlap | Root causeQualityOperations | InnovationPrototypeResearch | Root causeIncidentLeanProblem solving |
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