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| Criterion |  Operations Fishbone Diagram |  Innovation Design Thinking |  Innovation Design Sprint |  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 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 the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. | 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 | High | High | High |
Timedifferent | 30-60 min | 1 Tag bis mehrere Wochen | 4-5 Tage | 2-8 h |
Participantsdifferent | 2-8 | 4-10 | 5-8 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Problem Statement, Prototype, Test Learnings | Prototype, Test Findings, Decision Rationale | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | Root causeQualityOperations | InnovationPrototypeResearch | Design sprintPrototypeValidationInnovation | Problem solvingRoot causeDecisionOperations |