ATAG

A W3C standard that provides guidelines for making authoring tools—such as content management systems, HTML editors, and website builders—both accessible to authors with disabilities and capable of producing accessible content. ATAG 2.0, published in 2015, is organized into two parts: Part A addresses making the authoring tool interface itself accessible (keyboard navigation, screen reader support), while Part B addresses how the tool can help authors create WCAG-conformant content through prompts, automated checks, and accessible templates. ATAG complements WCAG and UAAG in the W3C accessibility guidelines suite.