Towards more mature web maintenance practices for accessibility.

This paper proposes a need to differentiate Web maintenance from traditional software maintenance. The maintenance of a Web site is different than that of software as it is under constant maintenance and works by default in "modified environments". Building on the authors' previous work of automated quality measurement, a case study of large scale Web maintenance activity is described which focuses on a change to ensure that Web pages are accessible to users with disabilities. The results of the study show that organisations which have a clear and committed maintenance strategy and provide their staff with appropriate tools and training have better quality Web sites