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Proceedings of the 2009 International Cross-Disciplinary Conference on Web Accessibililty (W4A)
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UAHCI'07 Proceedings of the 4th international conference on Universal access in human-computer interaction: applications and services
UAHCI'07 Proceedings of the 4th international conference on Universal access in human-computer interaction: applications and services
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ICCHP'06 Proceedings of the 10th international conference on Computers Helping People with Special Needs
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ICCHP'06 Proceedings of the 10th international conference on Computers Helping People with Special Needs
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ACM Transactions on Accessible Computing (TACCESS)
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Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility
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Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility
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This paper claims that effectiveness of automatic tools for evaluating web site accessibility has to be itself evaluated, given the increasingly important role that these tools play. The paper presents a comparison method for a pair of tools that takes into account correctness, completeness and specificity in supporting the task of assessing the conformance of a web site with respect to established guidelines. The paper presents data acquired during a case study based on comparing LIFT Machine with Bobby. The data acquired from the case study is used to assess the strengths and weaknesses of the comparison method. The conclusion is that even though there is room for improvement of the method, it is already capable of providing accurate and reliable conclusions.