There have been much said about web accessibility testing tools and they have been around for a long time historically representing a useful way of checking websites for accessibility. Web accessibility evaluation tools are used throughout all stages of web site development by web designers, developers, project managers, quality reviewers and other specialists at different stages of implementation of web site. According to the specific organization and web site for which evaluation tools will be used, different characteristics and features of web accessibility evaluation tools may be more or less important to the tool users however, any accessibility testing process must be viewed as a process that combines software tools with human judgment. But what we've seen during last years is a widespread of various automated web accessibility testing tools. Attracting by the ability to save a huge amount of time when checking for web accessibility any automated accessibility tool, being a piece of software, doesn't have very much in the way of common sense though. It will interpret each and every accessibility guideline literally without considering what else on the page.

Although the use of automated web accessibility tools is a very valuable step in assuring that a web site meets accessibility standards such as U.S Section 508 or the British Disability Discrimination Act, relying solely on their evaluation can result in circumstances that may exclude some portions of the public from a web site.

As it was indicated earlier any accessibility testing must be viewed as a process that combines automated software tools with human judgment. In turn, human judgment can be represented by the teamwork of real users with disabilities and accessibility experts with first-hand experience. It will allow: