What standards and specifications need to be followed when developing accessibility code?

Building Accessible Code: Standards and Best Practices

In order to develop code that meets accessibility requirements, improve user experience and ensure product universality, developers need to follow a series of standards and specifications.

Getting started, it is recommended to check out MDN Web Docs' concise guide on web accessibility, which provides the basics and methods of accessibility development.

However, to fully understand and adhere to accessibility development standards, it is important to learn deeply about WCAG (Web Content Accessibility Guide). WCAG is an international standard formulated by W3C. The latest version is WCAG 2.2, which contains detailed standards for accessibility assessment of web content. It is recommended to refer to the original English and Chinese translations (although there may be an update lag in the Chinese translation).

In addition to WCAG, other international standards also provide accessibility development guidance, such as ISO/IEC-40500, Article 508 of the US "Rehabilitation Act for Persons with Disabilities", and EU ETSI-EN-301-549. These standards put forward barrier-free requirements from different angles and levels, and developers can choose appropriate standards as reference according to actual conditions. Developers need to review relevant literature on their own to understand the specific content of these standards.

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