ifc:IfcProjectOrderTypeEnum

<xs:simpleType name="IfcProjectOrderTypeEnum">
  <xs:restriction base="xs:string">
    <xs:enumeration value="changeorder"/>
    <xs:enumeration value="maintenanceworkorder"/>
    <xs:enumeration value="moveorder"/>
    <xs:enumeration value="purchaseorder"/>
    <xs:enumeration value="workorder"/>
    <xs:enumeration value="userdefined"/>
    <xs:enumeration value="notdefined"/>
  </xs:restriction>
</xs:simpleType>