Barriers to use: usability and content accessibility on the Web's most popular sites
CUU '00 Proceedings on the 2000 conference on Universal Usability
Maximum Accessibility: Making Your Web Site More Usable for Everyone
Maximum Accessibility: Making Your Web Site More Usable for Everyone
Comparing accessibility evaluation tools: a method for tool effectiveness
Universal Access in the Information Society
Controlling Software Projects: Management, Measurement, and Estimates
Controlling Software Projects: Management, Measurement, and Estimates
Web Accessibility: Web Standards and Regulatory Compliance
Web Accessibility: Web Standards and Regulatory Compliance
Quantitative metrics for measuring web accessibility
W4A '07 Proceedings of the 2007 international cross-disciplinary conference on Web accessibility (W4A)
Effects of sampling methods on web accessibility evaluations
Proceedings of the 9th international ACM SIGACCESS conference on Computers and accessibility
Web accessibility testing: when the method is the culprit
ICCHP'06 Proceedings of the 10th international conference on Computers Helping People with Special Needs
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
Measuring Web Accessibility by Estimating Severity of Barriers
WISE '08 Proceedings of the 2008 international workshops on Web Information Systems Engineering
Good visual aesthetics equals good web accessibility
ACM SIGACCESS Accessibility and Computing
Guideline aggregation: web accessibility evaluation for older users
Proceedings of the 2009 International Cross-Disciplinary Conference on Web Accessibililty (W4A)
Web Accessibility Metrics: Effects of Different Computational Approaches
UAHCI '09 Proceedings of the 5th International Conference on Universal Access in Human-Computer Interaction. Part III: Applications and Services
Enriching web information scent for blind users
Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility
Avoiding to dispense with accuracy: a method to make different DTDs documents comparable
Proceedings of the 2010 ACM Symposium on Applied Computing
Automatic web accessibility metrics: Where we are and where we can go
Interacting with Computers
ACM SIGACCESS Accessibility and Computing
Enriching information retrieval results with web accessibility measurement
Journal of Web Engineering
Providing assistance to older users of dynamic Web content
Computers in Human Behavior
Barriers common to mobile and disabled web users
Interacting with Computers
Getting one voice: tuning up experts' assessment in measuring accessibility
Proceedings of the International Cross-Disciplinary Conference on Web Accessibility
Integrating manual and automatic evaluations to measure accessibility barriers
ICCHP'12 Proceedings of the 13th international conference on Computers Helping People with Special Needs - Volume Part I
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Although they play an important role in any assessment procedure, web accessibility metrics are not yet well developed and studied. In addition, most metrics are geared towards conformance, and therefore are not well suited to answer questions whether the web site has critical barriers with respect to some user group. The paper addresses some open issues: how can accessibility be measured other than by conformance to certain guidelines? How can a metric merge results produced by accessibility evaluation tools and by expert reviewers? Does it consider error rates of the tool? How can a metric consider also severity of accessibility barriers? Can a metric tell us if a web site is more accessible for certain user groups rather than others?. The paper presents a new methodology and associated metric for measuring accessibility that efficiently combine expert reviews with automatic evaluation of web pages. Examples and data drawn from tests performed on 1500 web pages are also presented.