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| Criterion |  UX Research Usability Testing |  UX Research Affinity Diagramming |  Operations A3 Problem Solving |  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 research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit 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 | Low | Medium | High |
Timedifferent | 1-2 h je Session | 45–90 min | 45-90 min | 4-5 Tage |
Participantsdifferent | Based on research question | 3-10 | 2-5 | 5-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Usability Issues, Severity List, Recommendations | Theme clusters, Insight statements, Opportunity areas | A3 Report, Action Plan, Root Cause Analysis | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ValidationUXPrototype | SynthesisQualitativeRoot cause | LeanProblem solvingCoachingOperations | Design sprintPrototypeValidationInnovation |