Definisjoner fra Deque University

Inclusive design

A design methodology that seeks to enable and to accommodate the full range of human diversity, including a wide spectrum of abilities and disabilities. The main goal is to create a unified approach to design that enables multiple methods to access the same functionality.

Web accessibility

The qualities that make a web experience available to the widest possible group of users. Web accessibility refers to the end result of an inclusive design process.

To add a bit more detail to the definition of web accessibility, the Web Content Accessibility Guidelines (WCAG) 2.1 opens in a new window list four main principles of web accessibility:

Perceivable - Information and user interface components must be presentable to users in ways they can perceive.
Operable - User interface components and navigation must be operable.
Understandable - Information and the operation of user interface must be understandable.
Robust - Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.

Usability

The qualities that make a web experience intuitive and easy to use. A usable web design aligns with the purpose for which the web site was created.