In content implemented using markup languages, the purpose of user interface components, icons, and regions can be programmatically determined.
The purpose of the success criterion is to identify the structure of a document so that users with cognitive disabilities can apply more familiar symbols and terms to help understand the purpose.
How to Meet
This success criterion is still under development for WCAG 2.2. It is not fully clear yet what requirements it involves.
The only listed requirement is to identify the regions of a web page. For digital publications, the equivalent is identifying primary structural sections from sidebars, warnings and similar secondary material. See the roles in the WAI-ARIA Digital Publishing Module for more information.
The following knowledge base pages provide more information about how to address this success criterion for publishing content: