<xs:schema targetNamespace="http://ltsc.ieee.org/xsd/LOM"
           xmlns="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/1.0 or send a letter to
         Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
      </xs:documentation>

      <xs:documentation>
         This component schema provides global type declarations for the standard
         enumerated types for those metadata elements whose values are taken from
         a vocabulary datatype.
      </xs:documentation>
      <xs:documentation>
        ****************************************************************************
        **                           CHANGE HISTORY                               **
        ****************************************************************************
        ** 09/22/2003:  - Updated comment describing this file to state that this **
        **                file is the LOM V1.0 Base Schema vocabulary source and  **
        **                value declarations.                                     ** 
        ****************************************************************************
      </xs:documentation>
   </xs:annotation>

   <!-- LOM V1.0 Base Schema vocabulary source and value declarations -->

   <!-- Source -->
   <xs:simpleType name="sourceValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="LOMv1.0"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 1.7 Structure -->
   <xs:simpleType name="structureValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="atomic"/>
         <xs:enumeration value="collection"/>
         <xs:enumeration value="networked"/>
         <xs:enumeration value="hierarchical"/>
         <xs:enumeration value="linear"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 1.8 Aggregation Level -->
   <xs:simpleType name="aggregationLevelValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="1"/>
         <xs:enumeration value="2"/>
         <xs:enumeration value="3"/>
         <xs:enumeration value="4"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 2.2 Status -->
   <xs:simpleType name="statusValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="draft"/>
         <xs:enumeration value="final"/>
         <xs:enumeration value="revised"/>
         <xs:enumeration value="unavailable"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 2.3.1 Role -->
   <xs:simpleType name="roleValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="author"/>
         <xs:enumeration value="publisher"/>
         <xs:enumeration value="unknown"/>
         <xs:enumeration value="initiator"/>
         <xs:enumeration value="terminator"/>
         <xs:enumeration value="validator"/>
         <xs:enumeration value="editor"/>
         <xs:enumeration value="graphical designer"/>
         <xs:enumeration value="technical implementer"/>
         <xs:enumeration value="content provider"/>
         <xs:enumeration value="technical validator"/>
         <xs:enumeration value="educational validator"/>
         <xs:enumeration value="script writer"/>
         <xs:enumeration value="instructional designer"/>
         <xs:enumeration value="subject matter expert"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 3.2.1 Role -->
   <xs:simpleType name="roleMetaValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="creator"/>
         <xs:enumeration value="validator"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 4.4.1.1 Type -->
   <xs:simpleType name="typeValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="operating system"/>
         <xs:enumeration value="browser"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 4.4.1.2 Name -->
   <xs:simpleType name="nameValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="pc-dos"/>
         <xs:enumeration value="ms-windows"/>
         <xs:enumeration value="macos"/>
         <xs:enumeration value="unix"/>
         <xs:enumeration value="multi-os"/>
         <xs:enumeration value="none"/>
         <xs:enumeration value="any"/>
         <xs:enumeration value="netscape communicator"/>
         <xs:enumeration value="ms-internet explorer"/>
         <xs:enumeration value="opera"/>
         <xs:enumeration value="amaya"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 5.1 Interactivity Type -->
   <xs:simpleType name="interactivityTypeValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="active"/>
         <xs:enumeration value="expositive"/>
         <xs:enumeration value="mixed"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 5.2 Learning Resource Type -->
   <xs:simpleType name="learningResourceTypeValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="exercise"/>
         <xs:enumeration value="simulation"/>
         <xs:enumeration value="questionnaire"/>
         <xs:enumeration value="diagram"/>
         <xs:enumeration value="figure"/>
         <xs:enumeration value="graph"/>
         <xs:enumeration value="index"/>
         <xs:enumeration value="slide"/>
         <xs:enumeration value="table"/>
         <xs:enumeration value="narrative text"/>
         <xs:enumeration value="exam"/>
         <xs:enumeration value="experiment"/>
         <xs:enumeration value="problem statement"/>
         <xs:enumeration value="self assessment"/>
         <xs:enumeration value="lecture"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 5.3 Interactivity Level -->
   <xs:simpleType name="interactivityLevelValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="very low"/>
         <xs:enumeration value="low"/>
         <xs:enumeration value="medium"/>
         <xs:enumeration value="high"/>
         <xs:enumeration value="very high"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 5.4 Semantic Density -->
   <xs:simpleType name="semanticDensityValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="very low"/>
         <xs:enumeration value="low"/>
         <xs:enumeration value="medium"/>
         <xs:enumeration value="high"/>
         <xs:enumeration value="very high"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 5.5 Intended End User Role -->
   <xs:simpleType name="intendedEndUserRoleValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="teacher"/>
         <xs:enumeration value="author"/>
         <xs:enumeration value="learner"/>
         <xs:enumeration value="manager"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 5.6 Context -->
   <xs:simpleType name="contextValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="school"/>
         <xs:enumeration value="higher education"/>
         <xs:enumeration value="training"/>
         <xs:enumeration value="other"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 5.8 Difficulty -->
   <xs:simpleType name="difficultyValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="very easy"/>
         <xs:enumeration value="easy"/>
         <xs:enumeration value="medium"/>
         <xs:enumeration value="difficult"/>
         <xs:enumeration value="very difficult"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 6.1 Cost -->
   <xs:simpleType name="costValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="yes"/>
         <xs:enumeration value="no"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 6.2 Copyright and Other Restrictions -->
   <xs:simpleType name="copyrightAndOtherRestrictionsValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="yes"/>
         <xs:enumeration value="no"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 7.1 Kind -->
   <xs:simpleType name="kindValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="ispartof"/>
         <xs:enumeration value="haspart"/>
         <xs:enumeration value="isversionof"/>
         <xs:enumeration value="hasversion"/>
         <xs:enumeration value="isformatof"/>
         <xs:enumeration value="hasformat"/>
         <xs:enumeration value="references"/>
         <xs:enumeration value="isreferencedby"/>
         <xs:enumeration value="isbasedon"/>
         <xs:enumeration value="isbasisfor"/>
         <xs:enumeration value="requires"/>
         <xs:enumeration value="isrequiredby"/>
      </xs:restriction>
   </xs:simpleType>

   <!-- 9.1 Purpose -->
   <xs:simpleType name="purposeValues">
      <xs:restriction base="xs:token">
         <xs:enumeration value="discipline"/>
         <xs:enumeration value="idea"/>
         <xs:enumeration value="prerequisite"/>
         <xs:enumeration value="educational objective"/>
         <xs:enumeration value="accessibility restrictions"/>
         <xs:enumeration value="educational level"/>
         <xs:enumeration value="skill level"/>
         <xs:enumeration value="security level"/>
         <xs:enumeration value="competency"/>
      </xs:restriction>
   </xs:simpleType>

</xs:schema>