<?xml version="1.0" encoding="UTF-8"?>
<!-- ============================================================= -->
<!--                    HEADER                                     -->
<!-- ============================================================= -->
<!--  MODULE:    DITA Concept XSD                                  -->
<!--  VERSION:   1.1                                             -->
<!--  DATE:      November 2006                                     -->
<!--                                                               -->
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<!-- ============================================================= -->
<!-- SYSTEM:     Darwin Information Typing Architecture (DITA)     -->
<!--                                                               -->
<!-- PURPOSE:    W3C XML Schema to describe DITA concepts          -->
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<!-- ORIGINAL CREATION DATE:                                       -->
<!--             March 2001                                        -->
<!--                                                               -->
<!--             (C) Copyright OASIS-Open.org 2005, 2006                -->
<!--             (C) Copyright IBM Corporation 2001, 2004.         -->
<!--             All Rights Reserved.                              -->
<!-- ============================================================= -->

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified" xmlns:ditaarch="http://dita.oasis-open.org/architecture/2005/">
  <!-- Add the domains to the base topic XML Schema -->
  <!--  ================ TOPIC DOMAINS INLCUSION =====================  -->
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:programmingDomain.xsd:1.1"/>
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:softwareDomain.xsd:1.1"/>
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:highlightDomain.xsd:1.1"/>
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:uiDomain.xsd:1.1"/>
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:utilitiesDomain.xsd:1.1"/>
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:indexingDomain.xsd:1.1"/>

  <!--  ================ CONCEPT GROUP DEFINITION=====================  -->
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:conceptGrp.xsd:1.1"/>
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:metaDeclGrp.xsd:1.1"/>
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:tblDeclGrp.xsd:1.1"/>
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:topicGrp.xsd:1.1"/>
  
  <!-- =================  MODULE INLCUDE DEFINITION  ==================  -->
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:commonElementMod.xsd:1.1"/>
  <!-- ======== Table elements ======== -->
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:tblDeclMod.xsd:1.1"/>    
  <!-- ======= MetaData elements, plus keyword and indexterm ======= -->
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:metaDeclMod.xsd:1.1"/>
  
  
  <xs:redefine schemaLocation="urn:oasis:names:tc:dita:xsd:commonElementGrp.xsd:1.1">
    <xs:group name="keyword">
      <xs:choice>
        <xs:group ref="keyword"/>
        <xs:group ref="pr-d-keyword" />
        <xs:group ref="ui-d-keyword" />
        <xs:group ref="sw-d-keyword" />
      </xs:choice>
    </xs:group>

    <xs:group name="ph">
      <xs:choice>
        <xs:group ref="ph"/>
        <xs:group ref="pr-d-ph" />
        <xs:group ref="ui-d-ph" />
        <xs:group ref="hi-d-ph" />
        <xs:group ref="sw-d-ph" />
      </xs:choice>
    </xs:group>

    <xs:group name="pre">
      <xs:choice>
        <xs:group ref="pre"/>
        <xs:group ref="pr-d-pre" />
        <xs:group ref="ui-d-pre" />
        <xs:group ref="sw-d-pre" />
      </xs:choice>
    </xs:group>


    <xs:group name="dl">
      <xs:choice>
        <xs:group ref="dl"/>
        <xs:group ref="pr-d-dl"/>
      </xs:choice >
    </xs:group >


    <xs:group name="fig">
      <xs:choice>
        <xs:group ref="fig"/>
        <xs:group ref="pr-d-fig"/>
        <xs:group ref="ut-d-fig" />
      </xs:choice>
    </xs:group >
    
    <xs:group name="index-base">
      <xs:choice>
        <xs:group ref="index-base"/>
        <xs:group ref="indexing-d-index-base"/>
      </xs:choice>
    </xs:group >

  </xs:redefine>


  <!--  ================ DOMAINS ATTRIBUTE DEFINITION =====================  -->
  <xs:redefine schemaLocation="urn:oasis:names:tc:dita:xsd:topicMod.xsd:1.1" >
  	<xs:complexType name="topic.class">
  		<xs:complexContent>
  			<xs:extension base="topic.class">
  			  <xs:attribute name="domains" type="xs:string" default="(topic ui-d) (topic hi-d) (topic sw-d) (topic pr-d) (topic ut-d) (topic indexing-d)"/>
  			</xs:extension>
  		</xs:complexContent>
  	</xs:complexType>
  </xs:redefine>
  
  <xs:redefine schemaLocation="urn:oasis:names:tc:dita:xsd:conceptMod.xsd:1.1" >
  	<xs:complexType name="concept.class">
  		<xs:complexContent>
  			<xs:extension base="concept.class">
  			  <xs:attribute name="domains" type="xs:string" default="(topic ui-d) (topic hi-d) (topic sw-d) (topic pr-d) (topic ut-d) (topic indexing-d)"/>
  			</xs:extension>
  		</xs:complexContent>
  	</xs:complexType>
  </xs:redefine>

  <!--  ================ INFO-TYPES DEFINITION =====================  -->
  <xs:group name="info-types">
    <xs:sequence/>
  </xs:group>


</xs:schema>
