Assessment of web accessibility and technical specifications conformance of web sites from four EU member states

摘要

The Internet is playing an important part in our day to day life, through its power of making information universally available. Provided that web content is designed with accessibility in mind, the Internet can bring immense benefits to people with restricted access to different aspects of life due to various types of disability. An important source for accessible web design resources is the W3C’s Web Accessibility Initiative (WAI). WAI published the Web Content Accessibility Guidelines (WCAG 1.0)[1] in May 1999, which is now a reference point in web accessibility related policies in many different jurisdictions.ududAn automated web accessibility surveying system investigating W3C WCAG 1.0 and HTML technical conformance of large samples of web sites, was implemented at the eAccess laboratory at RINCE, D.C.U.,Dublin, Ireland. In order to evaluate the practical results of the efforts invested in promoting web accessibility in Ireland, the conformance level of a sample of subjectively selected Irish web sites was monitored between April 2002 and December 2004. In order to place the web accessibility conformance level of Irish web sites at EU level, conformance levels of samples of randomly selected Irish, UK, French and German web sites were also monitored between May 2003 and December 2004.ududThe findings of the study show that the general level of web accessibility guidelines and HTML standards conformance in all the web samples studied is very poor and there were no clearly distinguishable improvements in the time interval considered. More than that, although the web samples differ greatly through the number of web sites considered, the results show a high similarity in the failures detected in the five web samples, over the entire time interval in which the investigations were carried out. These findings show that the efforts invested in promoting web accessibility until now have had a small impact in reality. The findings also suggest the need for a different, more firm, approach in promoting web accessibility guidelines compliance on the web.