A declarative model for web accessibility requirements – design and implementation

Abstract

The web has become the primary source of information and the primary place for shopping for many people. Many services provided by companies and authorities can be used online. Despite extensive guidelines for accessible websites, many websites are not accessible. Therefore, many of these services are difficult to use for people with disabilities. Many tools are available that can help developers to create accessible websites. One problem with these tools is that different tools often produce different results for the same web page. Also, these tools are often difficult to maintain for their developers. In this thesis, a declarative model for accessibility requirements is presented, together with an example implementation. Using the model, developers of accessibility tools can focus on implementing the tests, instead of implementing and understanding all aspects of the guidelines.