Glossary Term:

Usability

Usability

The extent to which a system, product or service can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use.

Note 1: The “specified”users, goals and context of use refer to the particular combination of users, goals and context of use for which usability is being considered.

Note 2: The word “usability” is also used as a qualifier to refer to the design knowledge, competencies, activities and design attributes that contribute to usability, such as usability expertise, usability professional, usability engineering, usability m

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Source

ISO 9241-11 (2018) Ergonomics of human-system interaction — Part 11: Usability: Definitions and concepts
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