WCAG

Web Content Accessibility Guidelines (WCAG) is a set of technical standards that helps make digital content more accessible to people with disabilities, including those who are deaf, blind, or have cognitive impairments. WCAG provides guidelines for making websites, documents, and other digital content more usable for people with different abilities and disabilities. These guidelines provide specific and measurable criteria for evaluating the accessibility of digital content, and they are widely recognized as the international standard for web accessibility.

Origins of WCAG

WCAG was developed by the Web Accessibility Initiative (WAI), a part of the World Wide Web Consortium (W3C). The first version of WCAG was published in 1999, and it has since undergone several revisions. The current version of WCAG is WCAG 2.1, which was published in June 2018. WCAG 2.1 includes new guidelines to address accessibility issues on mobile devices and other non- traditional computing devices.

WCAG Principles

WCAG is based on four principles, which are:

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