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

 <?xml version="1.0" encoding="utf-8"?>
 <xs:schema xmlns:ser="http://schemas.microsoft.com/2003/10/Serialization/" 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:import schemaLocation="" namespace="http://schemas.microsoft.com/2003/10/Serialization/" />
   <xs:complexType name="InvalidOperationException">
     <xs:complexContent mixed="false">
       <xs:extension base="tns:SystemException" />
     </xs:complexContent>
   </xs:complexType>
   <xs:element name="InvalidOperationException" nillable="true" type="tns:InvalidOperationException" />
   <xs:complexType name="SystemException">
     <xs:complexContent mixed="false">
       <xs:extension base="tns:Exception" />
     </xs:complexContent>
   </xs:complexType>
   <xs:element name="SystemException" nillable="true" type="tns:SystemException" />
   <xs:complexType name="Exception">
     <xs:sequence>
       <xs:any minOccurs="0" maxOccurs="unbounded" namespace="##local" processContents="skip" />
     </xs:sequence>
     <xs:attribute ref="ser:FactoryType" />
   </xs:complexType>
   <xs:element name="Exception" nillable="true" type="tns:Exception" />
 </xs:schema>