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| Criterion |  UX Research Usability Testing |  Innovation Design Sprint |  Operations MORT Analysis |
|---|---|---|---|
Purposedifferent | 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 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 safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. |
Complexitydifferent | Medium | High | High |
Timedifferent | 1-2 h je Session | 4-5 Tage | Mehrere Tage bis Wochen |
Participantsdifferent | Based on research question | 5-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Prototype, Test Findings, Decision Rationale | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations |
Tagsno overlap | ValidationUXPrototype | Design sprintPrototypeValidationInnovation | Root causeSafetySystemicIncident |
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