<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xsi:schemaLocation="http://www.w3.org/2001/XMLSchema XMLSchema.xsd"
            xmlns:Deployment="http://www.omg.org/Deployment"
            targetNamespace="http://www.omg.org/Deployment">

            <xsd:include schemaLocation="pcd.xsd" />

  <xsd:complexType name="TopLevelPackageDescription">
    <xsd:sequence>
      <xsd:element name="package" type="Deployment:PackageConfiguration" minOccurs="0" maxOccurs="unbounded"/> <!-- changed -->
    </xsd:sequence>
  </xsd:complexType>

</xsd:schema>
