Your customer base probably includes many people with disabilities, whether you are aware of it or not. According to government figures, one person in five has some functional limitation, and eight percent of all users on the Web have disabilities. In the United States alone there are more than 30 million people with disabilities who can be affected by the design of computer software, and worldwide the number is much higher. Many countries/regions, including the United States, have laws that mandate accessibility at some level.

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