Web Accessibility Testing

Web Document Accessibility

Definition

Document-level accessibility testing covers a number of issues in the construction of a page at the document level.  Document-level tags should be properly nested, and should include specific meta-information to provide context to the user and user agent.

Why is this an accessibility issue?

Web documents contain metadata that can help user agents to render web pages more flexibly, so they can be better used and understood by a wider audience, including people with disabilities and users of assistive technology.

Testing Methodology

  • Ensure that pages begin with the appropriate Document Type Declaration for the HTML version used to author the page
  • Check each page for an appropriate, descriptive <TITLE>
  • Make sure pages contain information required by the HTML version used to author the page
  • Ensure that the <HTML> tag includes a LANG attribute to identify the language of the page
  • Ensure that any changes in human-readable language are indicated by using the LANG attribute in the element that contains the language change
  • Ensure that pages are equally legible and functional when stylesheets are omitted

Tools

Conformance

A web page meets document-level accessibility standards if:

  • All of the above criteria are met
  • No other barriers exist in the page construction