These standards provide the parameter, to make a place, website etc more easily accessible to people with disabilities. However, the standards are not same for every aspect of life that is to be made more accessible. The accessibility standards are different for physical structure and for the electronic structure like websites because the accessibility need for both is different.
The focus of web accessibility is primarily on two issues first being the means of assessing electronic information by disabled users and the second being the good collaborative function of assistive devices on the web pages (Moss, pp. 23-25). In this regard, “Web Accessibility Initiative” provides guidelines known as “Web Content Accessibility Guidelines” (Moss, pp. 22-23). To date, two guidelines have been published known as “WCAG 1.0” in 1999 and “WCAG 2.0” in 2008 (Moss, pp. 24-26).
The latest set of guidelines i.e. “WCAG 2.0” is an improved version, which unlike the previous version uses simple language and real-world examples so that the guidelines are simple to understand. This document has eliminated some previous out of date version guidelines like:
Although no development has been made in term of accessibility, considerations and they represent old issues. However, the five most important accessibility considerations, which the web developer is to keep in his mind while designing and modifying any website are:
Rich media content accessibility: Rich media like audio and video content is to be made accessible to all. Addition of transcripts and separate narrative track to the rich media help in it to be more accessible.
Navigation: As mostly navigation system is based on graphics, making the image accessible will make navigation assessable right away. Use of access key and table index helps improve keyboard navigation.