[Conny Westh]

Man brukar referera till XSD-filen i början på XML-filen.

Ref: http://www.w3schools.com/schema/el_include.asp

<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://www.w3schools.com/schema">

<xs:include schemaLocation="http://www.w3schools.com/schema/customer.xsd"/>
<xs:include schemaLocation="http://www.w3schools.com/schema/company.xsd"/>

..

..

..

</xs:schema>