A critical part of the ISO definition is that usability is not an inherent property of a product; it is relative to the context. You cannot say a product is "usable" in a vacuum. The standard requires you to define:
The ISO 9241-11:2018 standard provides guidance on how to evaluate and improve usability, which can lead to benefits such as: iso 9241-11 2018 usability definition
ISO 9241-11:2018 Usability Definition: The Definitive Guide The standard provides the internationally recognized framework for defining and understanding usability in the context of human-system interaction. Unlike earlier versions, the 2018 update shifts the perspective of usability from a static product attribute to a dynamic outcome of use . The Official Definition According to ISO 9241-11:2018 , usability is: A critical part of the ISO definition is
: The extent to which a product, system, or service can be used by specified users to achieve specified goals with effectiveness, efficiency, and satisfaction. Unlike earlier versions, the 2018 update shifts the
By focusing on these aspects, usability aims to ensure that products, systems, and services are designed to be intuitive, easy to use, and provide a positive experience for their users.
: The resources expended (such as time, physical effort, or cognitive load) in relation to the accuracy and completeness of the goals achieved.