<xs:simpleType name="NonDestructiveTestingEnumType">
  <xs:annotation>
    <xs:documentation>The NonDestructiveTestingEnumType enumerates values that describe non-destructive testing types.</xs:documentation>
  </xs:annotation>
  <xs:restriction base="xs:string">
    <xs:enumeration value="ACOUSTIC_EMISSION"/>
    <xs:enumeration value="ELECTROMAGNETIC"/>
    <xs:enumeration value="LEAK"/>
    <xs:enumeration value="MAGNETIC_PARTICLE"/>
    <xs:enumeration value="NEUTRON_RADIOGRAPHIC"/>
    <xs:enumeration value="PENETRANT"/>
    <xs:enumeration value="PROOF"/>
    <xs:enumeration value="RADIOGRAPHIC"/>
    <xs:enumeration value="ULTRASONIC"/>
    <xs:enumeration value="VISUAL"/>
  </xs:restriction>
</xs:simpleType>