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Managing Website Accessibility Conformance

Shadi Abou-Zahra, W3C/WAI

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This Presentation


Achieving Conformance

Achieving conformance requires consideration throughout the process:

Maintaining Conformance

Maintaining the achieved level of accessibility conformance requires:

Conformance Evaluation

In some situations post-development evaluation is useful:


Website Accessibility Conformance Evaluation Methodology (WCAG-EM) 1.0:


Website: A coherent collection of one or more related web pages that together provide common use or functionality.

Example Website

Example "University Website" made of several sub-sites: "Information for Students", "Information for Lecturers", a "Courseware Application", and a "Library Application". The "Courseware Application" includes "Physics Courses", "Medical Courses", and "History Courses" that are aggregated into the "Courseware Application". It also has individual web pages such as legal notices, sitemap, and others that are not part of any particular sub-site.

5 Steps of WCAG-EM

WCAG-EM is designed around 5 steps of evaluation:

  1. Define the evaluation scope
  2. Explore the target website
  3. Select representative sample
  4. Audit the selected sample
  5. Report evaluation findings

Some Highlight

Some of the areas currently under discussion:


WCAG-EM describes these types of reports:


WCAG-EM suggests content-oriented rather than volume-oriented sampling:


To score or not to score, that is the question:

Input Wanted!

Your feedback on these and other aspects is needed:


Completion of WCAG-EM 1.0 is expected in 2013:

Interested in participating? Please contact us!

Accessibility Support

Developers need to know how supported Techniques are:

...and individual versions of these!


How can you collect this sheer amount of information?

Scope: not all information is really equally interesting.

Crowd Sourcing

Attempt to collect partially existing information:


Accessibility support database is already under development:

Interested in contributing? Please contact us!

Evaluation Tools

Current situation of web accessibility evaluation tools:

Developer Guidance

Current idea is to provide a framework that describes:

Example Features I

These could be overall features that tools provide:

Example Features II

These could be features for WCAG 2.0 Success Criterion:


Contribute to more consistent support for WCAG 2.0:


This work is currently just starting up (good time to get involved!):

Interested in contributing? Please contact us!

Other Resources

Further WAI resources on Managing Accessibility:

More Resources

Yet more WAI resources on Evaluating Web Accessibility:

Get Involved in WAI

Using WAI resources and contributing to WAI:

Thank You

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Shadi Abou-Zahra, W3C/WAI
Activity Lead, WAI International Program Office