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| Criterion |  UX Research Usability Testing |  Decision Making Delphi Method |  Innovation Design Sprint |
|---|---|---|---|
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 knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | 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. |
Complexitydifferent | Medium | High | High |
Timedifferent | 1-2 h je Session | 1-4 Wochen | 4-5 Tage |
Participantsdifferent | Based on research question | 6-30 Experten | 5-8 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | Usability Issues, Severity List, Recommendations | Expert Forecast, Consensus Range, Assumption Notes | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ValidationUXPrototype | ForecastingExpertsDecisionStrategy | Design sprintPrototypeValidationInnovation |
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