The importance of accessibility
It is becoming increasingly more important for organisations' web sites to be accessibility compatible. In UK, non-conformance with accessibility guideance can be classed as discrimination now.
Accessibility conformance defined
Web content accessibility guidelines (WCAG 1.0) are defined by World Wide Web Consortium (W3C), an organisation which is widely recognised as a de-facto Internet standards body.
This document is intended for use by web developers and organisations around the world in order to enable them to create highly accessible web sites.
Web sites which follow WCAG 1.0 guidelines are considered as accessible.
Accessibility is classed in in three levels, where level 1 accessibility conformance means meeting basic criteria and level 3 conformance is excellent accessibility.
Level 2 conformance (also known as AA - read as Double A) is classified as good practice and is widely recommended for all government related organisations, charities and any other company/organisation that does not want todiscriminate against their clients or customers.
Audience
One of the most important success leverages of any web site is its audience.
As with an audience in cinemas, web sites should not be designed in such a way as to prevent less able people to "access the show".
There are a number of crucial web accessibility guidelines which need to be addressed in order to make web sites accessible by any person, irrespective of their disability.
In a nutshell if a web site looks difficult to access, it probably is difficult to access!
Design of accessibile web site needs to use common technologies, be simple and strictly conform to WCAG 1.0 guidelines.
Conclusion
When thinking about designing web sites, the predominant thought should be its compatibility with W3C's WCAG 1.0 document. This will prevent companies from being liable for discriminatory behaviour against their clients and/or customers.