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| Criterion |  Operations Change Analysis |  UX Research Usability Testing |  UX Research Surveys |
|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 45-120 min | 1-2 h je Session | 3-14 Tage |
Participantsdifferent | 2-6 | Based on research question | 50+ |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Usability Issues, Severity List, Recommendations | Survey Results, Charts, Segment Insights |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | ValidationUXPrototype | QuantitativeResearchValidation |
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