This is not an attribute, but the namespace pseudo-attribute. The value provides a prefix to use for the XLink linking attributes. All namespace prefixes must be associated with a URL, and the prefix “xlink” has been set to the URL to the World Wide Web Consortium (W3C) XLink Recommendation.
| Value | Meaning |
|---|---|
| http://www.w3.org/1999/xlink | The prefix “xlink” has been set to this URL, the URL of the W3C XLink Recommendation. |
| Restriction: This attribute value may not be changed. | |