Web topic 23 web accessibility

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Web topic 23 web accessibility

  1. 1. Web Authoring Topic 23 – Web Accessibility
  2. 2. ObjectivesStudents should able to:1. Explain web accessibility.2. List the principles of accessible design.
  3. 3. Web AccessibilityWhat is Web Accessibility?Web accessibility means that people withdisabilities can use the Web.More specifically, Web accessibility meansthat people with disabilities can perceive,understand, navigate, and interact with theWeb.
  4. 4. Web AccessibilityWhat is disabilities?Disabilities that affect access to theWeb, includingvisual, auditory, physical, speech, cognitive, and neurological disabilities. Visual Hearing Cognitive Motor
  5. 5. Web AccessibilityWhy Web Accessibility is Important?It is essential that the Web be accessible inorder to provide equal access and equalopportunity to people with disabilities.An accessible Web can also help peoplewith disabilities more actively participatein society.
  6. 6. Principles of Accessible DesignList of some key principles of accessibledesign:1. Provide appropriate alternative text2. Provide headings for data tables3. Ensure users can complete and submit all forms4. Ensure links make sense out of context
  7. 7. Principles of Accessible DesignList of some key principles of accessibledesign:5. Caption and/or provide transcripts for media6. Allow users to skip repetitive elements on the page7. Do not rely on colour alone to convey meaning
  8. 8. Principles of Accessible DesignList of some key principles of accessibledesign:8. Make sure content is clearly written and easy to read9. Make JavaScript accessible10. Design to standards
  9. 9. Making Accessible Web SiteMaking a Web site accessible can be simpleor complex, depending on many factors suchas the type of content, the size andcomplexity of the site, and the developmenttools and environment.Many accessibility features are easilyimplemented if they are planned from thebeginning of Web site development orredesign http://www.w3.org/WAI/impl/
  10. 10. Accessibility of a Web SiteWhen developing or redesigning asite, evaluating accessibility early andthroughout the development process canidentify accessibility problems early when it iseasier to address them.
  11. 11. Accessibility of a Web SiteThere are evaluation tools that help withevaluation.However, no tool alone can determine if asite meets accessibility guidelines.Knowledgeable human evaluation isrequired to determine if a site is accessible. http://www.w3.org/WAI/eval/conformance

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