6.7.8 http://schemas.datacontract.org/2004/07/System

       <?xml version="1.0" encoding="utf-8"?>
       <xs:schema xmlns:tns="http://schemas.datacontract.org/2004/07/System" elementFormDefault="qualified" targetNamespace="http://schemas.datacontract.org/2004/07/System" xmlns:xs="http://www.w3.org/2001/XMLSchema">
         <xs:complexType name="Version">
           <xs:sequence>
             <xs:element name="_Build" type="xs:int" />
             <xs:element name="_Major" type="xs:int" />
             <xs:element name="_Minor" type="xs:int" />
             <xs:element name="_Revision" type="xs:int" />
           </xs:sequence>
         </xs:complexType>
         <xs:element name="Version" nillable="true" type="tns:Version" />
</xs:schema>