<xs:schema
    targetNamespace="http://docs.oasis-open.org/wsdm/2004/12/muws/wsdm-pbm.xsd"	
    xmlns:pbm="http://docs.oasis-open.org/wsdm/2004/12/muws/wsdm-pbm.xsd"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    elementFormDefault="qualified" attributeFormDefault="unqualified">

  <xs:element name="Match" type="xs:QName"/>

  <xs:complexType name="MatchAllType">
    <xs:choice>
      <xs:element ref="pbm:Match"/>
      <xs:element ref="pbm:MatchAny"/>
    </xs:choice>
  </xs:complexType>

  <xs:complexType name="MatchAnyType">
    <xs:choice>
      <xs:element ref="pbm:Match"/>
      <xs:element ref="pbm:MatchAll"/>
    </xs:choice>
  </xs:complexType>

  <xs:element name="MatchAll" type="pbm:MatchAllType"/>

  <xs:element name="MatchAny" type="pbm:MatchAnyType"/>

</xs:schema>

• MatchAllType
• MatchAnyType

• Match
• MatchAll
• MatchAny