Is this schema valid?

• From: Dare Obasanjo <dareo@microsoft.com>
• Date: Wed, 17 Mar 2004 11:06:39 -0800
• To: <xmlschema-dev@w3.org>
• Message-ID: <830178CE7378FC40BC6F1DDADCFDD1D1021BDEE8@RED-MSG-31.redmond.corp.microsoft.com>

Is there any reason why myDCT is an invalid restriction of myCT?
Intuitively it seems it is not but there is verbiage that may imply that
it is.  


<xs:schema elementFormDefault="qualified"
xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <xs:complexType name="Person">
            <xs:sequence>
                        <xs:element name="FirstName" type="xs:string"/>
            </xs:sequence>
  </xs:complexType>

  <xs:complexType name="Emp">
    <xs:complexContent>
            <xs:extension base="Person">
            <xs:sequence>
                        <xs:element name="LastName" type="xs:string"/>
            </xs:sequence>
            </xs:extension>
    </xs:complexContent>
  </xs:complexType>

  <xs:complexType name="myCT">
            <xs:sequence>
                        <xs:element name="Person" type="xs:anyType"/>
            </xs:sequence>
  </xs:complexType>

<xs:complexType name="myDCT">
    <xs:complexContent>
            <xs:restriction base="myCT">
            <xs:sequence>
                        <xs:element name="Person" type="Emp"/>
            </xs:sequence>
            </xs:restriction>
    </xs:complexContent>
  </xs:complexType>

</xs:schema>

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Received on Wednesday, 17 March 2004 14:07:13 UTC