<?xml version="1.0" encoding="UTF-8"?>

<!--

 | (C) Copyright IBM Corporation 2005 - 2006. All Rights Reserved.

 *-->

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" xmlns:ditaarch="http://dita.oasis-open.org/architecture/2005/">

  <xs:import namespace="http://dita.oasis-open.org/architecture/2005/" schemaLocation="../../../schema/ditaarch.xsd"/>

  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="../../../schema/xml.xsd"/>

   <xs:group name="api-d-xref">

     <xs:choice>

       <xs:element ref="apipackage"/>

       <xs:element ref="apiclassifier"/>

       <xs:element ref="apioperation"/>

       <xs:element ref="apivalue"/>

     </xs:choice>

   </xs:group>

  <xs:element name="apipackage" >

    <xs:complexType mixed="true">

      <xs:attributeGroup ref="apipackage.attlist"/>

    </xs:complexType>

  </xs:element>

  <xs:attributeGroup name="apipackage.attlist">

    <xs:attribute name="href"/>

    <xs:attribute name="keyref"/>

    <xs:attribute name="type"/>

    <xs:attributeGroup ref="univ-atts"/>

    <xs:attribute name="format"/>

    <xs:attribute name="scope">

      <xs:simpleType>

        <xs:restriction base="xs:token">

          <xs:enumeration value="local"/>

          <xs:enumeration value="peer"/>

          <xs:enumeration value="external"/>

          <xs:enumeration value="-dita-use-conref-target"/>

        </xs:restriction>

      </xs:simpleType>

    </xs:attribute>

    <xs:attribute name="outputclass"/>

    <xs:attributeGroup ref="global-atts"/>

    <xs:attribute name="class" default="+ topic/xref pr-d/xref api-d/apipackage "/>

  </xs:attributeGroup>

  <xs:element name="apiclassifier" >

    <xs:complexType mixed="true">

      <xs:attributeGroup ref="apiclassifier.attlist"/>

    </xs:complexType>

  </xs:element>

  <xs:attributeGroup name="apiclassifier.attlist">

    <xs:attribute name="href"/>

    <xs:attribute name="keyref"/>

    <xs:attribute name="type"/>

    <xs:attributeGroup ref="univ-atts"/>

    <xs:attribute name="format"/>

    <xs:attribute name="scope">

      <xs:simpleType>

        <xs:restriction base="xs:token">

          <xs:enumeration value="local"/>

          <xs:enumeration value="peer"/>

          <xs:enumeration value="external"/>

          <xs:enumeration value="-dita-use-conref-target"/>

        </xs:restriction>

      </xs:simpleType>

    </xs:attribute>

    <xs:attribute name="outputclass"/>

    <xs:attributeGroup ref="global-atts"/>

    <xs:attribute name="class" default="+ topic/xref pr-d/xref api-d/apiclassifier "/>

  </xs:attributeGroup>

  <xs:element name="apioperation" >

    <xs:complexType mixed="true">

      <xs:attributeGroup ref="apioperation.attlist"/>

    </xs:complexType>

  </xs:element>

  <xs:attributeGroup name="apioperation.attlist">

    <xs:attribute name="href"/>

    <xs:attribute name="keyref"/>

    <xs:attribute name="type"/>

    <xs:attributeGroup ref="univ-atts"/>

    <xs:attribute name="format"/>

    <xs:attribute name="scope">

      <xs:simpleType>

        <xs:restriction base="xs:token">

          <xs:enumeration value="local"/>

          <xs:enumeration value="peer"/>

          <xs:enumeration value="external"/>

          <xs:enumeration value="-dita-use-conref-target"/>

        </xs:restriction>

      </xs:simpleType>

    </xs:attribute>

    <xs:attribute name="outputclass"/>

    <xs:attributeGroup ref="global-atts"/>

    <xs:attribute name="class" default="+ topic/xref pr-d/xref api-d/apioperation "/>

  </xs:attributeGroup>

  <xs:element name="apivalue" >

    <xs:complexType mixed="true">

      <xs:attributeGroup ref="apivalue.attlist"/>

    </xs:complexType>

  </xs:element>

  <xs:attributeGroup name="apivalue.attlist">

    <xs:attribute name="href"/>

    <xs:attribute name="keyref"/>

    <xs:attribute name="type"/>

    <xs:attributeGroup ref="univ-atts"/>

    <xs:attribute name="format"/>

    <xs:attribute name="scope">

      <xs:simpleType>

        <xs:restriction base="xs:token">

          <xs:enumeration value="local"/>

          <xs:enumeration value="peer"/>

          <xs:enumeration value="external"/>

          <xs:enumeration value="-dita-use-conref-target"/>

        </xs:restriction>

      </xs:simpleType>

    </xs:attribute>

    <xs:attribute name="outputclass"/>

    <xs:attributeGroup ref="global-atts"/>

    <xs:attribute name="class" default="+ topic/xref pr-d/xref api-d/apivalue "/>

  </xs:attributeGroup>

</xs:schema>