Complete evaluation is at the intersection of automated testing (great for syntax errors / omissions) and custom evaluation by people with disabilities (invaluable for semantic errors / oversights) using assistive technology.
The classic Evaluation is proactive use of current best practices during the Design Process.
For a white paper on evaluation, visit theDeque group:
Comprehensive list of Accessibility Evaluation Resources from W3C:
Several free tests exist – some free:
Accessibility Management Platform (from SSB Bart Group): https://amp.ssbbartgroup.com/express?keyword=accessible+software&lead_source=Tools+-+Concept&campaignID=701000000009L3e&adID=1000
See also: (for visual presentation of a page in a linear mode)
“ Lynx Browser (Text-based) viewer
The Lynx Viewer allows webmasters to see what their pages will look like when viewed with Lynx , a text-mode web browser. It is also presumably, how search engines see your site. In addition to that, it can help determine if web pages are accessible to the vision impaired.”
W3C HTML to Text converter
Hand evaluation by PWD
Despite the existence of automated tools, the functional evaluation by people with disabilities who use standard assistive technology will provide more insight into both the deficiencies and weaknesses of information systems – and, equally important, suggestions for better approaches to the presentation of information.
Vendors & VPATS (IBM / Microsoft / Apple / Google…)
From the Section 508 resource site:
When software is purchased, the seller should explain that the product is accessible. The accepted standard format for the explanation is a “VPAT.”
“The Voluntary Product Accessibility Template (VPAT) is the most common format vendors can use to describe how their products and services conform to the EIT accessibility standard. The VPAT is a form created by industry and can be requested as part of a solicitation making it mandatory for the vendor to submit with their bid.”
Google’s Accessible web initiatives: open standards and 508 documents
Section 508 VPATs for Microsoft products