xlink:role

Role of the Link

A URI reference pointing to some resource that describes the role or function of a link.

Example

...  
<ext-link ext-link-type="url" xlink:type="simple"  
xlink:role="http://www.mulberrytech.com/walkthewalk.html" 
xlink:title="XML-based slideshow application"
xlink:actuate="onRequest" xlink:show="new" 
xlink:href="http://www.mulberrytech.com/slideshow/index.html">
Mulberry Slideshow XML</ext-link>
...