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| Criterion |  UX Research Surveys |  Operations Fishbone Diagram |  Innovation Design Thinking |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | When a topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | 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 process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Medium | Low | High | High |
Timedifferent | 3-14 Tage | 30-60 min | 1 Tag bis mehrere Wochen | 2-6 h |
Participantsdifferent | 50+ | 2-8 | 4-10 | 3-10 |
Formatdifferent | Async | Workshop | Workshop | Workshop |
Outputdifferent | Survey Results, Charts, Segment Insights | Fishbone Diagram, Cause Categories, Investigation Backlog | Problem Statement, Prototype, Test Learnings | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | QuantitativeResearchValidation | Root causeQualityOperations | InnovationPrototypeResearch | RiskQualityOperationsRoot cause |