v1/test/src/enumtest/enumtest.xsd

<xs:schema
   xmlns:xs="http://www.w3.org/2001/XMLSchema"
   xmlns:et="http://openuri.org/enumtest"
   targetNamespace="http://openuri.org/enumtest"
   elementFormDefault="qualified">

  <xs:simpleType name="quantity">
    <xs:restriction base="xs:NMTOKEN">
      <xs:enumeration value="all"/>
      <xs:enumeration value="most"/>
      <xs:enumeration value="some"/>
      <xs:enumeration value="few"/>
      <xs:enumeration value="none"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="allOrNone">
    <xs:restriction base="et:quantity">
      <xs:enumeration value="all"/>
      <xs:enumeration value="none"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:complexType name="data">
    <xs:simpleContent>
      <xs:extension base="et:quantity">
        <xs:attribute name="name" type="xs:string"/>
        <xs:attribute name="target" type="et:allOrNone"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>

  <xs:element name="statusreport">
    <xs:complexType>
      <xs:sequence>
        <xs:element name="status" type="et:data" minOccurs="0" maxOccurs="unbounded"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
 
</xs:schema>