Web Content Accessibility Guidelines (WCAG) are part of a series of Web accessibility guidelines published by the W3C's Web Accessibility Initiative. They consist of a set of guidelines for making content accessible, primarily for disabled users, but also for all user agents, including highly limited devices, such as mobile phones. The current version is 2.0.
Contents |
The WCAG 1.0 were published and became a W3C recommendation on May 5, 1999. They have since been superseded by WCAG 2.0.
WCAG 1.0 has three priority levels:
In February 2008, The WCAG Samurai, a group of developers independent of the W3C, and led by Joe Clark, published corrections for, and extensions to, the WCAG 1.0.
WCAG 2.0 was published as a W3C Recommendation on December 11, 2008.[1][2] The lengthy consultation process prior to this encouraged participation in editing (and responding to the hundreds of comments) by the Working Group, with diversity assured by inclusion of accessibility experts and members of the disability community.
The Web Accessibility Initiative is also working on guidance for migrating from WCAG 1.0 to WCAG 2.0. A comparison of WCAG 1.0 checkpoints and WCAG 2.0 success criteria is already available.[3]
WCAG 2.0 uses the same three levels of conformance as WCAG 1.0, but has redefined them. The WCAG working group maintains an extensive list of web accessibility techniques and common failure cases for WCAG 2.0.[4]
|
|||||||||||||||||||||||||||||||