Usability
5152·updated May 18, 2026extent 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: 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 method, usability evaluation, usability heuristic). [See also: ISO/IEC 9241-11 Ergonomic of Human-System Interaction — Part 11: Usability: Definitions and Concepts. ISO, Geneva, Switzerland, 2018, https://www.iso.org/standard/63500.html.]
Classifications
Entity Type
Sensitivity
Information Class
Variants
- synonym
- serviceability
- plural
- Usabilities
- possessive
- Usability's
- pluralpossessive
- Usabilities'
Framework definitions
- §1
- 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: 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 method, usability evaluation, usability heuristic). [See also: ISO/IEC 9241-11 Ergonomic of Human-System Interaction — Part 11: Usability: Definitions and Concepts. ISO, Geneva, Switzerland, 2018, https://www.iso.org/standard/63500.html.]
- §1
- the quality of being able to provide good service