Transition of accessibility evaluation tools to new standards

Authors:
Amaia Aizpurua;Myriam Arrue;Markel Vigo;Julio Abascal
Affiliations:
University of the Basque Country, Donostia, Spain;University of the Basque Country, Donostia, Spain;University of the Basque Country, Donostia, Spain;University of the Basque Country, Donostia, Spain
Venue:
Proceedings of the 2009 International Cross-Disciplinary Conference on Web Accessibililty (W4A)
Year:
2009

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Abstract

While automatic tools are not intended to replace human judgement they are crucial in order to develop accessible web sites. The release of WCAG 2.0 entails that the existing plethora of accessibility review tools will have to be updated. This paper presents an evaluation framework for making the transition from WCAG 1.0 to WCAG 2.0 in a less painful way. A framework is thus proposed that allows developers to create new guidelines, and update or reuse the existing ones. A case study to test its feasibility has been carried out by incorporating WCAG 2.0 guidelines into the framework. The results are satisfactory, since 55% of the automatic and 16% of the semi-automatic ones could be expressed using the framework. Therefore, it is demonstrated that even if the framework does not fully support the transition process, at least it makes it less burdensome. Moreover, by analyzing WCAG 2.0 we have learnt how to extend the existing tools in order to provide greater coverage and thus increase their effectiveness.