<?xml version="1.0" encoding="UTF-8"?>
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<!--                    HEADER                                     -->
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<!--  MODULE:    DITA BASE XSD                                     -->
<!--  VERSION:   1.1                                             -->
<!--  DATE:      November 2006                                     -->
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<!-- ============================================================= -->
<!-- SYSTEM:     Darwin Information Typing Architecture (DITA)     -->
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<!-- PURPOSE:    Based W3C XML Schema holds all the information    -->
<!--             types                                             -->
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<!-- ORIGINAL CREATION DATE:                                       -->
<!--             March 2001                                        -->
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<!--             (C) Copyright OASIS-Open.org 2005, 2006                -->
<!--             (C) Copyright IBM Corporation 2001, 2004.         -->
<!--             All Rights Reserved.                              -->
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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified" xmlns:ditaarch="http://dita.oasis-open.org/architecture/2005/">
  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="urn:oasis:names:tc:dita:xsd:xml.xsd:1.1"/>
  <!-- Add the domains to the base topic XML Schema -->
  <!--  ================ TOPIC DOMAINS =====================  -->
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:uiDomain.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:programmingDomain.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"/>

  <!--  ================ GROUP DEFINITIONS =====================  -->
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:referenceGrp.xsd:1.1" />
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:taskGrp.xsd:1.1" />
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:conceptGrp.xsd:1.1" />
  <xs:include schemaLocation="urn:oasis:names:tc:dita:xsd:glossaryGrp.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>

  <!--  ================ INFO TYPES =====================  -->
  <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:group name="topic-info-types">
      <xs:choice>
        <xs:group ref="info-types"/>
      </xs:choice>
    </xs:group>
  </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:group name="concept-info-types">
      <xs:choice>
        <xs:group ref="info-types"/>
      </xs:choice>
    </xs:group>
  </xs:redefine>

  <xs:redefine schemaLocation="urn:oasis:names:tc:dita:xsd:taskMod.xsd:1.1" >
    <xs:complexType name="task.class">
      <xs:complexContent>
        <xs:extension base="task.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:group name="task-info-types">
      <xs:choice>
        <xs:group ref="info-types"/>
      </xs:choice>
    </xs:group>
  </xs:redefine>

  <xs:redefine schemaLocation="urn:oasis:names:tc:dita:xsd:referenceMod.xsd:1.1" >
    <xs:complexType name="reference.class">
      <xs:complexContent>
        <xs:extension base="reference.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:group name="reference-info-types">
      <xs:choice>
        <xs:group ref="info-types"/>
      </xs:choice>
    </xs:group>
  </xs:redefine>
  
  <xs:redefine schemaLocation="urn:oasis:names:tc:dita:xsd:glossaryMod.xsd:1.1" >
    <xs:complexType name="glossentry.class">
      <xs:complexContent>
        <xs:extension base="glossentry.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:group name="glossentry-info-types">
      <xs:choice>
        <xs:group ref="no-topic-nesting"/>
      </xs:choice>
    </xs:group>
    
  </xs:redefine>

  <xs:group name="ditabase-info-types">
    <xs:choice>
      <xs:group ref="info-types"/>
      </xs:choice>
  </xs:group>

  <xs:group name="info-types">
    <xs:choice>
      <xs:element ref="topic"/>
      <xs:element ref="task"/>
      <xs:element ref="concept"/>
      <xs:element ref="reference"/>
      <xs:element ref="glossentry"/>
    </xs:choice>
  </xs:group>

  <xs:annotation>
    <xs:documentation>The &lt;<keyword>dita</keyword>&gt; element provides a top-level container
      for multiple topics when you create documents using the ditabase DTD. The
      &lt;<keyword>dita</keyword>&gt; element lets you create any sequence of concept,
      task, and reference topics, and the ditabase DTD lets you further nest these
      topic types inside each other. The &lt;<keyword>dita</keyword>&gt; element has
      no particular output implications; it simply allows you to create multiple
      topics of different types at the same level in a single document.</xs:documentation>
  </xs:annotation>
  <xs:element name="dita" type="dita.class"/>
  <xs:complexType name="dita.class">
    <xs:choice maxOccurs="unbounded">
      <xs:group ref="ditabase-info-types"/>
    </xs:choice>
     <xs:attributeGroup ref="global-atts"/>
  </xs:complexType>

</xs:schema>
