Blog post on the ATIS4All portal on SVG and accessibility
SVG, the W3C scalable vector image standard, has been around for a very long time. Despite it’s many strenghts it has not been used much on the web or other HTML apps until recently. This was partly due to the less than smooth integration with HTML, plus fixed resolution raster images were often good enough and easy to produce. Recently however, 2 developments have led to an increased interest in and use of SVG; ease of integration, for example <IMG> supports SVG in more browsers, and the meteoric rise in mobile devices with variable screen sizes have caused a need for cleanly rescaling images.
Accessibility of SVG is now an issue as it appears more often on the web, often providing entising visually-oriented content and animations. Seeing that SVG is a declarative markup format, just like HTML, we can apply much of the principals of HTML accessibility. However there are extra conciderations unique to SVG to consider during devleopment.
A recent bog post by Douglas Alan Schepers goes into great detail on the Current state of Authoring Accessible SVG