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| Criterion |  Innovation Design Thinking |  Engineering Fault Isolation |  UX Research Surveys |
|---|---|---|---|
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. | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | 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. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | 1 Tag bis mehrere Wochen | 30-180 min | 3-14 Tage |
Participantsdifferent | 4-10 | 1-6 | 50+ |
Formatdifferent | Workshop | Workshop + async | Async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Survey Results, Charts, Segment Insights |
Tagsno overlap | InnovationPrototypeResearch | TroubleshootingDiagnosisEngineering | QuantitativeResearchValidation |
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