1. Week 7

2.  Definition, policies, standards  Continuum of abilities

3.  The practice of making web sites usable by people of all abilities and disabilities  Correctly designed web sites provide everyone with equal access to information and functionality  It is a human right and a moral obligation

4.  Visual Impairment Ranges from complete blindness, to low vision, to colour blindness  Mobility or Dexterity Impairment Severe: paraplegia/quadriplegia, cerebral palsy, multiple sclerosis Difficulty with fine-motor: arthritis, Parkinson’s Disease Old age  Auditory Impairment Deaf, hard of hearing  Cognitive Impairment Severe learning disabilities, low literacy or numeracy skills, dyslexia, cultural or language differences t

5.  People who are blind can use computer but they can’t see the screen  People with low vision may only see the screen partially  People with colour blindness cannot distinguish some colour combinations because of low contrast

6.  Limited arm movement  Use of only one hand  Difficulty controlling fine movements  Difficulty holding a mouse  Tremors, shaking hands

7.  Sure, a deaf person can watch a video, but how meaningful is it without the audio?

8.  Memory-related  Problem-solving  Attention deficits  Reading, linguistic and verbal comprehension  Math comprehension  Visual comprehension

9.  Hardware Touch screens Head- and mouth-wands Switches Customized keyboards Large mice trackballs  Software Screen readers High contrast colour schemes Text and icon magnification

10.  W3C standard, approved December 2008  Provides set of principles and guidelines that you should be familiar with before building a web site  Consists of four principles and broken down into 12 guidelines  Each guideline has several “success criteria”

11.  A – This is the lowest level and means you’ve met the minimum level of accesibility  AA  AAA

12. 1. Perceivable a. Provide text alternatives for any non-text content b. Provide alternatives to time-based media c. Create content presentable in different ways without losing structure or information d. Make it easier to see and hear content (background/foreground contrast 2. Operable a. Make all content accessible by keyboard b. Provide enough time to read content c. Do not design content that could cause seizures

13. 3. Understandable a. Make text content readable and understandable b. Make web pages that operate predictably c. Help users avoid and correct mistakes 4. Robust a. Maximize compatibility with current and future user agents and assistive technologies