  There is plethora of tools available for automatic evaluation of web
accessibility with respect to WCAG. This paper compares a set of WCAG tools and
their results in terms of ease of comprehension and implementation by web
developers. The paper highlights accessibility issues that cannot be captured
only through conformance to WCAG tools and propose additional methods to
evaluate accessibility through an Inclusive User Model. We initially selected
ten WCAG tools from W3 website and used a set of these tools on the landing
pages of BBC and WHO websites. We compared their outcome in terms of
commonality, differences, amount of details and usability. Finally, we briefly
introduced the Inclusive User Model and demonstrated how simulation of user
interaction can capture usability and accessibility issues that are not
detected through WCAG analysis. The paper concludes with a proposal on a Common
User Profile format that can be used to compare and contrast accessibility
systems and services, and to simulate and personalize interaction for users
with different range of abilities.
