<xsd:element name="configuration">
    <xsd:annotation>
        <xsd:documentation>Tests under the configuration section describe conditions that violate a secure baseline or recommendation.  For example, if a vulnerable Microsoft Windows .dll file is part of a specific service, then a machine might only be exploitable if that service is actually running.  Even though the vulnerable file exists on the disk, the vulnerability can be mitigated by disabling the service.  The test determining if the service is running would be under the configuration section.  The optional operation attribute determines how to handle multiple criterion elements.  Possible values are: AND, OR, XOR.  A value of AND means that each criterion must be true for the configuration section to return true.  A value of OR means that only one criterion must be true for the configuration section to return turn.  XOR is defined to be true if an odd number of criterion are true, and false otherwise.</xsd:documentation>
        <xsd:appinfo>
            <cardinality>0-1</cardinality>
            <attributes>[operation]</attributes>
            <content>none</content>
            <parent_elements>criteria</parent_elements>
            <child_elements>criterion</child_elements>
        </xsd:appinfo>
    </xsd:annotation>
    <xsd:complexType>
        <xsd:sequence>
            <xsd:element ref="oval:criterion" minOccurs="1" maxOccurs="unbounded" />
        </xsd:sequence>
        <xsd:attribute name="operation" type="oval:operations" use="optional" default="AND" />
    </xsd:complexType>
</xsd:element>