<xs:schema targetNamespace="http://ltsc.ieee.org/xsd/LOM/vocab"
           xmlns="http://ltsc.ieee.org/xsd/LOM/vocab"
           xmlns:lom="http://ltsc.ieee.org/xsd/LOM"
           xmlns:xs="http://www.w3.org/2001/XMLSchema"
           elementFormDefault="qualified"
           version="IEEE LTSC LOM XML 1.0">

   <xs:annotation>
      <xs:documentation>
         This work is licensed under the Creative Commons Attribution-ShareAlike
         License.  To view a copy of this license, see the file license.txt,
         visit http://creativecommons.org/licenses/by-sa/2.0 or send a letter to
         Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
      </xs:documentation>

      <xs:documentation>
         This component schema definition provides simple type declarations for LOM
         data elements that are defined as Vocabulary data types.

         This component schema definition enforces that vocabulary values are only those
         specified in 1484.12.3.  The component schema definition does 
         not allow custom vocabulary values from other sources.

         NOTE:  This component schema definition supports the validation of strictly 
         conforming vocabulary values by checking that both sources and values are from the
         token set defined in the LOMv1.0 base schema.
      </xs:documentation>
      <xs:documentation>
        *****************************************************************************
        **                                                                         ** 
        ** NOTE THIS CHANGE HISTORY IS USED TO DOCUMENT CHANGES TO THE XML SCHEMA  **
        ** DEFINITION DURING THE BALLOTING PROCESS.  THIS CHANGE HISTORY WILL BE   **
        ** REMOVED ONCE THE FINAL VERSION OF THE STANDARD IS PUBLISHED.  A NEW     **
        ** CHANGE HISTORY WILL BE INCLUDED TO INDICATE THE INITIAL RELEASE THAT    **
        ** MAPS TO THE FINAL STANDARD.                                             **
        **                                                                         **
        *****************************************************************************
        **                            CHANGE HISTORY                               **
        *****************************************************************************
        ** 03/15/2004:  1)Updated annoation describing purpose and design of the   **
        **                XSD.                                                     **
        **                                                                         **
        ** 09/27/2004   1)Updated file documentation to correspond with working    **
        **                draft 3.                                                 **
        **              2)Updated the Creative Commons Licensing agreement to      **
        **                reference the Attribution-ShareAlike 2.0                 **
        *****************************************************************************
      </xs:documentation>
   </xs:annotation>

   <xs:import namespace="http://ltsc.ieee.org/xsd/LOM"/>

   <!-- Vocabulary data type declarations -->

   <!-- Source -->
   <xs:simpleType name="source">
      <xs:union memberTypes="lom:sourceValues"/>
   </xs:simpleType>

   <!-- 1.7 Structure -->
   <xs:simpleType name="structure">
      <xs:union memberTypes="lom:structureValues"/>
   </xs:simpleType>

   <!-- 1.8 Aggregation Level -->
   <xs:simpleType name="aggregationLevel">
      <xs:union memberTypes="lom:aggregationLevelValues"/>
   </xs:simpleType>

   <!-- 2.2 Status -->
   <xs:simpleType name="status">
      <xs:union memberTypes="lom:statusValues"/>
   </xs:simpleType>

   <!-- 2.3.1 Role -->
   <xs:simpleType name="role">
      <xs:union memberTypes="lom:roleValues"/>
   </xs:simpleType>

   <!-- 3.2.1 Role -->
   <xs:simpleType name="roleMeta">
      <xs:union memberTypes="lom:roleMetaValues"/>
   </xs:simpleType>

   <!-- 4.4.1.1 Type -->
   <xs:simpleType name="type">
      <xs:union memberTypes="lom:typeValues"/>
   </xs:simpleType>

   <!-- 4.4.1.2 Name -->
   <xs:simpleType name="name">
      <xs:union memberTypes="lom:nameValues"/>
   </xs:simpleType>

   <!-- 5.1 Interactivity Type -->
   <xs:simpleType name="interactivityType">
      <xs:union memberTypes="lom:interactivityTypeValues"/>
   </xs:simpleType>
 
   <!-- 5.2 Learning Resource Type -->
   <xs:simpleType name="learningResourceType">
      <xs:union memberTypes="lom:learningResourceTypeValues"/>
   </xs:simpleType>
 
   <!-- 5.3 Interactivity Level -->
   <xs:simpleType name="interactivityLevel">
      <xs:union memberTypes="lom:interactivityLevelValues"/>
   </xs:simpleType>

   <!-- 5.4 Semantic Density -->
   <xs:simpleType name="semanticDensity">
      <xs:union memberTypes="lom:semanticDensityValues"/>
   </xs:simpleType>

   <!-- 5.5 Intended End User Role -->
   <xs:simpleType name="intendedEndUserRole">
      <xs:union memberTypes="lom:intendedEndUserRoleValues"/>
   </xs:simpleType>

   <!-- 5.6 Context -->
   <xs:simpleType name="context">
      <xs:union memberTypes="lom:contextValues"/>
   </xs:simpleType>

   <!-- 5.8 Difficulty -->
   <xs:simpleType name="difficulty">
      <xs:union memberTypes="lom:difficultyValues"/>
   </xs:simpleType>

   <!-- 6.1 Cost -->
   <xs:simpleType name="cost">
      <xs:union memberTypes="lom:costValues"/>
   </xs:simpleType>

   <!-- 6.2 Copyright and Other Restrictions -->
   <xs:simpleType name="copyrightAndOtherRestrictions">
      <xs:union memberTypes="lom:copyrightAndOtherRestrictionsValues"/>
   </xs:simpleType>

   <!-- 7.1 Kind -->
   <xs:simpleType name="kind">
      <xs:union memberTypes="lom:kindValues"/>
   </xs:simpleType>

   <!-- 9.1 Purpose -->
   <xs:simpleType name="purpose">
      <xs:union memberTypes="lom:purposeValues"/>
   </xs:simpleType>

</xs:schema>