XLink Schema

<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  targetNamespace="http://www.w3.org/1999/xlink"
>

  <xsd:attribute name="type" type="xsd:string" 
                 fixed="simple" />
  <xsd:attribute name="href" type="xsd:anyURI" />
  <xsd:attribute name="actuate" type="xsd:string"
                 fixed="onLoad" />
  <xsd:attribute name="show" type="xsd:string"
                 fixed="embed" />

</xsd:schema>