<?xml version="1.0" encoding="utf-8"?>
<xsd:schema version="1.0" xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    xmlns:xdr="urn:schemas-microsoft-com:xml-data"
    xmlns:dt="urn:schemas-microsoft-com:datatypes"
    targetNamespace="urn:schemas-microsoft-com:xml-data"
    attributeFormDefault="unqualified" elementFormDefault="qualified">
  <xsd:import namespace="urn:schemas-microsoft-com:datatypes"/>
  <xsd:element name="Schema">
    <xsd:annotation>
      <xsd:documentation>The XML-Data Reduced (XDR) schema element </xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
      <xsd:choice minOccurs="0" maxOccurs="unbounded">
        <xsd:element ref="xdr:AttributeType"/>
        <xsd:element ref="xdr:ElementType"/>
        <xsd:element ref="xdr:description"/>
        <xsd:any namespace="##other" processContents="skip"/>
      </xsd:choice>
      <xsd:attribute name="name" type="xsd:string"/>
      <xsd:attribute name="id" type="xsd:string"/> <!-- ADO recordsets use this -->
      <xsd:anyAttribute namespace="##other" processContents="skip"/>
    </xsd:complexType>
  </xsd:element>
  <xsd:attributeGroup name="required">
    <xsd:attribute name="required">
      <xsd:simpleType>
        <xsd:restriction base="xsd:string">
          <xsd:enumeration value="yes"/>
          <xsd:enumeration value="no"/>
        </xsd:restriction>
      </xsd:simpleType>
    </xsd:attribute>
  </xsd:attributeGroup>
  <xsd:attributeGroup name="content">
    <xsd:attribute name="content">
      <xsd:simpleType>
        <xsd:restriction base="xsd:string">
          <xsd:enumeration value="empty"/>
          <xsd:enumeration value="textOnly"/>
          <xsd:enumeration value="eltOnly"/>
          <xsd:enumeration value="mixed"/>
        </xsd:restriction>
      </xsd:simpleType>
    </xsd:attribute>
  </xsd:attributeGroup>
  <xsd:attributeGroup name="model">
    <xsd:attribute name="model">
      <xsd:simpleType>
        <xsd:restriction base="xsd:string">
          <xsd:enumeration value="open"/>
          <xsd:enumeration value="closed"/>
        </xsd:restriction>
      </xsd:simpleType>
    </xsd:attribute>
  </xsd:attributeGroup>
  <xsd:attributeGroup name="order">
    <xsd:attribute name="order">
      <xsd:simpleType>
        <xsd:restriction base="xsd:string">
          <xsd:enumeration value="one"/>
          <xsd:enumeration value="seq"/>
          <xsd:enumeration value="many"/>
          <xsd:enumeration value="all"/>
        </xsd:restriction>
      </xsd:simpleType>
    </xsd:attribute>
  </xsd:attributeGroup>
  <xsd:attributeGroup name="minmax">
    <xsd:attribute name="minOccurs">
      <xsd:simpleType>
        <xsd:restriction base="xsd:string">
          <xsd:enumeration value="0"/>
          <xsd:enumeration value="1"/>
        </xsd:restriction>
      </xsd:simpleType>
    </xsd:attribute>
    <xsd:attribute name="maxOccurs">
      <xsd:simpleType>
        <xsd:restriction base="xsd:string">
          <xsd:enumeration value="1"/>
          <xsd:enumeration value="*"/>
        </xsd:restriction>
      </xsd:simpleType>
    </xsd:attribute>
  </xsd:attributeGroup>
  <xsd:element name="attribute">
    <xsd:complexType>
      <xsd:attribute name="type" type="xsd:string"/>
      <xsd:attribute name="default" type="xsd:string"/>
      <xsd:attributeGroup ref="xdr:required"/>
    </xsd:complexType>
  </xsd:element>
  <xsd:element name="element">
    <xsd:complexType>
      <xsd:attribute name="type" type="xsd:string"/>
      <xsd:attributeGroup ref="xdr:minmax"/>
    </xsd:complexType>
  </xsd:element>
  <xsd:element name="AttributeType">
    <xsd:complexType>
      <xsd:choice minOccurs="0" maxOccurs="unbounded">
        <xsd:element ref="xdr:datatype"/>
        <xsd:element ref="xdr:description"/>
        <xsd:any namespace="##other" processContents="skip"/>
      </xsd:choice>
      <xsd:attribute name="default" type="xsd:string"/>
      <xsd:attribute name="name" type="xsd:string"/>
      <xsd:attributeGroup ref="xdr:required"/>
      <xsd:attributeGroup ref="dt:typeAttributes"/>
      <xsd:anyAttribute namespace="##other"/>
    </xsd:complexType>
  </xsd:element>
  <xsd:element name="ElementType">
    <xsd:complexType>
      <xsd:choice minOccurs="0" maxOccurs="unbounded">
        <xsd:element ref="xdr:attribute"/>
        <xsd:element ref="xdr:AttributeType"/>
        <xsd:element ref="xdr:element"/>
        <xsd:element ref="xdr:group"/>
        <xsd:element ref="xdr:datatype"/>
        <xsd:element ref="xdr:description"/>
        <xsd:element ref="xdr:extends"/> <!-- ado recordsets use this -->
        <xsd:any namespace="##other" processContents="skip"/>
      </xsd:choice>
      <xsd:attribute name="name" type="xsd:string"/>
      <xsd:attributeGroup ref="xdr:content"/>
      <xsd:attributeGroup ref="xdr:model"/>
      <xsd:attributeGroup ref="xdr:order"/>
      <xsd:attributeGroup ref="dt:typeAttributes"/>
      <xsd:anyAttribute namespace="##other"/>
    </xsd:complexType>
  </xsd:element>
  <xsd:element name="group">
    <xsd:complexType>
      <xsd:choice minOccurs="0" maxOccurs="unbounded">
        <xsd:element ref="xdr:description"/>
        <xsd:element ref="xdr:element"/>
        <xsd:element ref="xdr:group"/>
        <xsd:any namespace="##other" processContents="skip"/>
      </xsd:choice>
      <xsd:attributeGroup ref="xdr:order"/>
      <xsd:attributeGroup ref="xdr:minmax"/>
      <xsd:anyAttribute namespace="##other"/>
    </xsd:complexType>
  </xsd:element>
  <xsd:element name="description">
    <xsd:complexType mixed="true">
      <xsd:choice minOccurs="0" maxOccurs="unbounded">
        <xsd:any processContents="skip" namespace="##any"/>
      </xsd:choice>
    </xsd:complexType>
  </xsd:element>
  <xsd:element name="datatype">
    <xsd:complexType mixed="true">
      <xsd:attributeGroup ref="dt:typeAttributes"/>
      <xsd:anyAttribute namespace="##other"/>
    </xsd:complexType>
  </xsd:element>
  <xsd:element name="extends">
    <xsd:complexType>
      <xsd:attribute name="type" type="xsd:string"/>
    </xsd:complexType>
  </xsd:element>  
</xsd:schema>