Already the creator of the web, Tim Berners-Lee,
has said that the power of the web in its universality, which means that the
web should be accessible to all, regardless of their disability. Nowadays, when
the use of the Internet not only for leisure, but also in professional life has
become almost commonplace, the accessibility has even greater importance. Due
to inaccessible websites the disabled are partially or completely unable to
receive online information, resulting in an extremely low potential for
inclusion in the information society.
Currently there are about 80 million somehow
disabled people in the EU. This figure is rapidly rising due to the aging of
the population. Also the elderly with a high degree of visual impairment or
hearing impairment are counted among the disabled.
There are different types of disabilities, which are very well described in the official page of W3C: https://www.w3.org/WAI/intro/people-use-web/diversity#diversity
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