-- XML schema extracted from ITU-T X.1144 (10/2013)

<?xml version="1.0" encoding="UTF-8"?>
<Policy
  xmlns="urn:oasis:names:tc:xacml:3.0:core:schema:wd-17"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:md="http:www.med.example.com/schemas/record.xsd"
  PolicyId="urn:oasis:names:tc:xacml:3.0:example:policyid:4"
  Version="1.0"
  RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-algorithm:deny-overrides">
  <PolicyDefaults>
    <XPathVersion>http://www.w3.org/TR/1999/REC-xpath-19991116</XPathVersion>
  </PolicyDefaults>
  <Target/>
  <Rule
    RuleId="urn:oasis:names:tc:xacml:3.0:example:ruleid:4" 
    Effect="Deny">
    <Description>
      An Administrator shall not be permitted to read or write 
      medical elements of a patient record in the
      http://www.med.example.com/records.xsd namespace.
    </Description>
    <Target>
      <AnyOf>
        <AllOf>
          <Match
            MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
           <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string"
            >administrator</AttributeValue>
            <AttributeDesignator
              MustBePresent="false"
      Category="urn:oasis:names:tc:xacml:1.0:subject-category:access-subject"
            AttributeId="urn:oasis:names:tc:xacml:3.0:example:attribute:role"
              DataType="http://www.w3.org/2001/XMLSchema#string"/>
          </Match>
        </AllOf>
      </AnyOf>
      <AnyOf>
        <AllOf>
          <Match
            MatchId="urn:oasis:names:tc:xacml:1.0:function:anyURI-equal">
           <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#anyURI"
            >urn:example:med:schemas:record</AttributeValue>
            <AttributeDesignator
              MustBePresent="false"
          Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource"
         AttributeId="urn:oasis:names:tc:xacml:2.0:resource:target-namespace"
              DataType="http://www.w3.org/2001/XMLSchema#anyURI"/>
          </Match>
          <Match
            MatchId="urn:oasis:names:tc:xacml:3.0:function:xpath-node-match">
            <AttributeValue
           DataType="urn:oasis:names:tc:xacml:3.0:data-type:xpathExpression"
    XPathCategory="urn:oasis:names:tc:xacml:3.0:attribute-category:resource"
               >md:record/md:medical</AttributeValue>
            <AttributeDesignator
               MustBePresent="false"
          Category="urn:oasis:names:tc:xacml:3.0:attribute-category:resource"
          AttributeId="urn:oasis:names:tc:xacml:3.0:content-selector"
          DataType="urn:oasis:names:tc:xacml:3.0:data-type:xpathExpression"/>
          </Match>
        </AllOf>
      </AnyOf>
      <AnyOf>
        <AllOf>
          <Match
            MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
          <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string"
             >read</AttributeValue>
            <AttributeDesignator
               MustBePresent="false"
            Category="urn:oasis:names:tc:xacml:3.0:attribute-category:action"
              AttributeId="urn:oasis:names:tc:xacml:1.0:action:action-id"
              DataType="http://www.w3.org/2001/XMLSchema#string"/>
          </Match>
        </AllOf>
        <AllOf>
          <Match
            MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
           <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string"
            >write</AttributeValue>
            <AttributeDesignator
               MustBePresent="false"
            Category="urn:oasis:names:tc:xacml:3.0:attribute-category:action"
              AttributeId="urn:oasis:names:tc:xacml:1.0:action:action-id"
              DataType="http://www.w3.org/2001/XMLSchema#string"/>
          </Match>
        </AllOf>
      </AnyOf>
    </Target>
  </Rule>
</Policy>