5.2 http://schemas.microsoft.com/windows/2007/BusinessDataCatalog/Resources Schema

 <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:bdc="http://schemas.microsoft.com/windows/2007/BusinessDataCatalog/Resources" targetNamespace="http://schemas.microsoft.com/windows/2007/BusinessDataCatalog/Resources" elementFormDefault="qualified">
   <xs:element name="Model" type="bdc:Model"/>
   <xs:complexType name="Model">
     <xs:complexContent>
       <xs:extension base="bdc:IndividuallySecurableMetadataObject">
         <xs:sequence>
           <xs:element name="LobSystems" type="bdc:LobSystems" minOccurs="0" maxOccurs="1">
             <xs:unique name="LobSystemNameKey">
               <xs:selector xpath="*"/>
               <xs:field xpath="@Name"/>
             </xs:unique>
           </xs:element>
         </xs:sequence>
         <xs:attribute name="Name" type="bdc:NameString" use="required"/>
       </xs:extension>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="LobSystems">
     <xs:sequence>
       <xs:element name="LobSystem" type="bdc:LobSystem" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="MetadataObject" abstract="true">
     <xs:sequence>
       <xs:element name="LocalizedDisplayNames" type="bdc:LocalizedDisplayNames" minOccurs="0" maxOccurs="1">
         <xs:unique name="LocalizedDisplayNameLCIDKey">
           <xs:selector xpath="*"/>
           <xs:field xpath="@LCID"/>
         </xs:unique>
       </xs:element>
       <xs:element name="Properties" type="bdc:Properties" minOccurs="0" maxOccurs="1">
         <xs:unique name="PropertyNameKey">
           <xs:selector xpath="*"/>
           <xs:field xpath="@Name"/>
         </xs:unique>
       </xs:element>
     </xs:sequence>
     <xs:attribute name="Name" type="bdc:NameString" use="required"/>
   </xs:complexType>
   <xs:complexType name="IndividuallySecurableMetadataObject" abstract="true">
     <xs:complexContent>
       <xs:extension base="bdc:MetadataObject">
         <xs:sequence>
           <xs:element name="AccessControlList" type="bdc:AccessControlList" minOccurs="0" maxOccurs="1"/>
         </xs:sequence>
       </xs:extension>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="LocalizedDisplayNames">
     <xs:sequence>
       <xs:element name="LocalizedDisplayName" type="bdc:LocalizedDisplayName" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="LocalizedDisplayName" mixed="true">
     <xs:attribute name="LCID" type="xs:integer" use="required"/>
   </xs:complexType>
   <xs:complexType name="LobSystem">
     <xs:complexContent>
       <xs:extension base="bdc:IndividuallySecurableMetadataObject">
         <xs:sequence>
           <xs:element name="LobSystemInstances" type="bdc:LobSystemInstances" minOccurs="0" maxOccurs="1">
             <xs:unique name="LobSystemInstanceNameKey">
               <xs:selector xpath="*"/>
               <xs:field xpath="@Name"/>
             </xs:unique>
           </xs:element>
           <xs:element name="Entities" type="bdc:Entities" minOccurs="0" maxOccurs="1">
             <xs:unique name="EntityNameNamespaceVersionKey">
               <xs:selector xpath="*"/>
               <xs:field xpath="@Name"/>
               <xs:field xpath="@Namespace"/>
               <xs:field xpath="@Version"/>
             </xs:unique>
           </xs:element>
         </xs:sequence>
       </xs:extension>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="LobSystemInstances">
     <xs:sequence>
       <xs:element name="LobSystemInstance" type="bdc:LobSystemInstance" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="LobSystemInstance">
     <xs:complexContent>
       <xs:extension base="bdc:MetadataObject"/>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="Entities">
     <xs:sequence>
       <xs:element name="Entity" type="bdc:Entity" minOccurs="1" maxOccurs="unbounded">
         <xs:unique name="MethodInstanceNameKey">
           <xs:selector xpath=".//bdc:MethodInstances/*"/>
           <xs:field xpath="@Name"/>
         </xs:unique>
       </xs:element>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="Entity">
     <xs:complexContent>
       <xs:extension base="bdc:IndividuallySecurableMetadataObject">
         <xs:sequence>
           <xs:element name="Identifiers" type="bdc:Identifiers" minOccurs="0">
             <xs:unique name="IdentifierNameKey">
               <xs:selector xpath="*"/>
               <xs:field xpath="@Name"/>
             </xs:unique>
           </xs:element>
           <xs:element name="Methods" type="bdc:Methods" minOccurs="0">
             <xs:unique name="MethodNameKey">
               <xs:selector xpath="*"/>
               <xs:field xpath="@Name"/>
             </xs:unique>
           </xs:element>
           <xs:element name="AssociationGroups" type="bdc:AssociationGroups" minOccurs="0">
             <xs:unique name="AssociationGroupNameKey">
               <xs:selector xpath="*"/>
               <xs:field xpath="@Name"/>
             </xs:unique>
           </xs:element>
           <xs:element name="Actions" type="bdc:Actions" minOccurs="0">
             <xs:unique name="ActionNameKey">
               <xs:selector xpath="*"/>
               <xs:field xpath="@Name"/>
             </xs:unique>
           </xs:element>
         </xs:sequence>
         <xs:attribute name="Namespace" type="bdc:NameString" use="required"/>
         <xs:attribute name="Version" type="bdc:VersionString" use="required"/>
       </xs:extension>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="AssociationGroups">
     <xs:sequence>
       <xs:element name="AssociationGroup" type="bdc:AssociationGroup" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="AssociationGroup">
     <xs:complexContent>
       <xs:extension base="bdc:MetadataObject"/>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="Identifiers">
     <xs:sequence>
       <xs:element name="Identifier" type="bdc:Identifier" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="Identifier">
     <xs:complexContent>
       <xs:extension base="bdc:MetadataObject"/>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="Methods">
     <xs:sequence>
       <xs:element name="Method" type="bdc:Method" minOccurs="1" maxOccurs="unbounded">
         <xs:key name="ParameterNameKey">
           <xs:selector xpath=".//bdc:Parameter"/>
           <xs:field xpath="@Name"/>
         </xs:key>
         <xs:key name="MethodMethodInstanceNameKey">
           <xs:selector xpath=".//bdc:MethodInstances/*"/>
           <xs:field xpath="@Name"/>
         </xs:key>
       </xs:element>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="Method">
     <xs:complexContent>
       <xs:extension base="bdc:IndividuallySecurableMetadataObject">
         <xs:sequence>
           <xs:element name="FilterDescriptors" type="bdc:FilterDescriptors" minOccurs="0" maxOccurs="1">
             <xs:unique name="FilterDescriptorNameKey">
               <xs:selector xpath="*"/>
               <xs:field xpath="@Name"/>
             </xs:unique>
           </xs:element>
           <xs:element name="Parameters" type="bdc:Parameters" minOccurs="0" maxOccurs="1"/>
           <xs:element name="MethodInstances" type="bdc:MethodInstances" minOccurs="0" maxOccurs="1"/>
         </xs:sequence>
       </xs:extension>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="FilterDescriptors">
     <xs:sequence>
       <xs:element name="FilterDescriptor" type="bdc:FilterDescriptor" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="FilterDescriptor">
     <xs:complexContent>
       <xs:extension base="bdc:MetadataObject"/>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="MethodInstances">
     <xs:choice minOccurs="1" maxOccurs="unbounded">
       <xs:element name="Association" type="bdc:Association"/>
       <xs:element name="MethodInstance" type="bdc:MethodInstance"/>
     </xs:choice>
   </xs:complexType>
   <xs:complexType name="MethodInstance">
     <xs:complexContent>
       <xs:extension base="bdc:IndividuallySecurableMetadataObject"/>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="Parameters">
     <xs:sequence>
       <xs:element name="Parameter" type="bdc:Parameter" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="Parameter">
     <xs:complexContent>
       <xs:extension base="bdc:MetadataObject">
         <xs:sequence>
           <xs:element name="TypeDescriptor" type="bdc:TypeDescriptor"/>
         </xs:sequence>
       </xs:extension>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="TypeDescriptor">
     <xs:complexContent>
       <xs:extension base="bdc:MetadataObject">
         <xs:sequence>
           <xs:element name="TypeDescriptors" type="bdc:TypeDescriptors" minOccurs="0">
             <xs:unique name="TypeDescriptorNameKey">
               <xs:selector xpath="*"/>
               <xs:field xpath="@Name"/>
             </xs:unique>
           </xs:element>
         </xs:sequence>
       </xs:extension>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="TypeDescriptors">
     <xs:sequence>
       <xs:element name="TypeDescriptor" type="bdc:TypeDescriptor" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="Actions">
     <xs:sequence>
       <xs:element name="Action" type="bdc:Action" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="Action">
     <xs:complexContent>
       <xs:extension base="bdc:MetadataObject">
         <xs:sequence>
           <xs:element name="ActionParameters" type="bdc:ActionParameters" minOccurs="0">
             <xs:unique name="ActionParameterNameKey">
               <xs:selector xpath="*"/>
               <xs:field xpath="@Name"/>
             </xs:unique>
           </xs:element>
         </xs:sequence>
       </xs:extension>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="ActionParameters">
     <xs:sequence>
       <xs:element name="ActionParameter" type="bdc:ActionParameter" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="ActionParameter">
     <xs:complexContent>
       <xs:extension base="bdc:MetadataObject"/>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="Association">
     <xs:complexContent>
       <xs:extension base="bdc:IndividuallySecurableMetadataObject"/>
     </xs:complexContent>
   </xs:complexType>
   <xs:complexType name="Property" mixed="true">
     <xs:attribute name="Name" type="bdc:NameString" use="required"/>
     <xs:attribute name="Type" type="bdc:TypeNameString" use="required"/>
   </xs:complexType>
   <xs:complexType name="Properties">
     <xs:sequence>
       <xs:element name="Property" type="bdc:Property" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="AccessControlList">
     <xs:sequence>
       <xs:element name="AccessControlEntry" type="bdc:AccessControlEntry" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
   <xs:complexType name="AccessControlEntry">
     <xs:sequence>
       <xs:element name="Right" type="bdc:Right" minOccurs="1" maxOccurs="unbounded"/>
     </xs:sequence>
     <xs:attribute name="Principal" type="xs:string" use="required"/>
   </xs:complexType>
   <xs:complexType name="Right">
     <xs:attribute name="BdcRight" type="bdc:BdcRightName" use="required"/>
   </xs:complexType>
   <xs:simpleType name="BdcRightName">
     <xs:restriction base="xs:string">
       <xs:enumeration value="None"/>
       <xs:enumeration value="Execute"/>
       <xs:enumeration value="Edit"/>
       <xs:enumeration value="SetPermissions"/>
       <xs:enumeration value="SelectableInClients"/>
     </xs:restriction>
   </xs:simpleType>
   <xs:simpleType name="NameString">
     <xs:restriction base="xs:string">
       <xs:minLength value="1"/>
       <xs:maxLength value="255"/>
     </xs:restriction>
   </xs:simpleType>
   <xs:simpleType name="TypeNameString">
     <xs:restriction base="xs:string">
       <xs:minLength value="1"/>
       <xs:maxLength value="255"/>
     </xs:restriction>
   </xs:simpleType>
   <xs:simpleType name="VersionString">
     <xs:restriction base="xs:string">
       <xs:pattern value="[0-9]+(\.[0-9]+){1,3}"/>
     </xs:restriction>
   </xs:simpleType>
 </xs:schema>