The relationship between accessibility and usability of websites
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Accessibility 2.0: people, policies and processes
W4A '07 Proceedings of the 2007 international cross-disciplinary conference on Web accessibility (W4A)
SAMBA: a semi-automatic method for measuring barriers of accessibility
Proceedings of the 9th international ACM SIGACCESS conference on Computers and accessibility
Effects of sampling methods on web accessibility evaluations
Proceedings of the 9th international ACM SIGACCESS conference on Computers and accessibility
Beyond Conformance: The Role of Accessibility Evaluation Methods
WISE '08 Proceedings of the 2008 international workshops on Web Information Systems Engineering
Validity and reliability of web accessibility guidelines
Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility
How much does expertise matter?: a barrier walkthrough study with experts and non-experts
Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility
Testability and validity of WCAG 2.0: the expertise effect
Proceedings of the 12th international ACM SIGACCESS conference on Computers and accessibility
Automatic web accessibility metrics: Where we are and where we can go
Interacting with Computers
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Web accessibility entails far more than just paying attention to a handful of HTML tags and attributes: it deals with human behavior. As consequence we have a number of pitfalls that hamper accessibility evaluation of web pages. In this paper I review some of the research my coauthors and I did in the last four years that provides some experimental evidence. In fact, the three fundamental processes of (1) selecting the pages to be investigated, (2) finding their problems, and (3) measuring the corresponding accessibility levels are ridden with potential traps which affect reliability and even validity of evaluations. Knowing which traps are there and figuring out how to overcome them should rank high in the priority list of researchers and practitioners in accessibility. This is what is needed in order to move towards an engineering of accessibility.