WCAG 2.2 defines how to make web content more accessible to people with a wide range of disabilities, including visual, auditory, physical, speech, cognitive, language, learning, and neurological disabilities.
While Web Content Accessibility Guidelines (WCAG) provides guidelines to improve usability for users in general, they are not able to address the needs of people with all types, degrees, and combinations of disabilities. Additionally, these guidelines can also make web content more usable for older individuals with changing abilities due to ageing.
These guidelines are not technology-specific and can be applied to web content on desktops, laptops, tablets, and mobile devices. Following these guidelines will also make web content more usable to users in general.
WCAG 2.2 extends previous versions of the guidelines and can provide an alternate means of conformance for policies requiring adherence to WCAG 2.0 or WCAG 2.1.
Perceivable - Information and UI components must be presented in ways that users can perceive, which means non-text content must be available in a usable way (e.g. audio alternatives for visually impaired users).
Operable - UI components and navigation must be operable, allowing users to interact with the interface through different devices (e.g. keyboard for desktop users, touchscreens for mobile users).
Understandable - Information and UI operation must be understandable, with good readability, consistent interface design, and clear error messages.
- Robust - Content must be interpretable by a wide range of user agents, including assistive technologies, ensuring accessibility as technologies advance.