# Development of a usability scale based on the three ISO 9241-11 categories “effectiveness,” “efficacy” and “satisfaction”: a technical note

> Research article (Accreditation and Quality Assurance, 2019) · cited 16× · AI/ML

**Wikidata**: [openalex:W2920829928](https://www.wikidata.org/wiki/openalex:W2920829928)  
**Source**: https://4ort.xyz/entity/development-of-a-usability-scale-based-on-the-three-iso-9241-11-categories-effectiveness-efficacy-and-satisfaction-a-tec