<xsd:schema xmlns:xsd="http://www.w3.org/2000/10/XMLSchema"
xmlns:xlink="http://www.w3.org/1999/xlink"
targetNamespace="http://www.w3.org/1999/xlink"
attributeFormDefault="qualified"
>
<xsd:attributeGroup name="XLinkAttributes">
<xsd:attribute name="xlink:simple" type="xsd:string"/>
<xsd:attribute name="xlink:href" type="xsd:uriReference"/>
</xsd:attributeGroup>
</xsd:schema>