<xs:schema xmlns="http://ltsc.ieee.org/xsd/LOM" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ns1="http://ltsc.ieee.org/xsd/LOM/unique" xmlns:ns2="http://ltsc.ieee.org/xsd/LOM/vocab" xmlns:ns3="http://ltsc.ieee.org/xsd/LOM/extend" targetNamespace="http://ltsc.ieee.org/xsd/LOM" 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 file represents a composite schema for validating
         LOM V1.0 instances.  This file is built by default to represent a 
         composite schema for validation of the following:          

         1) The use of LOM Base Schema vocabulary source/value pairs only
         2) Uniqueness constraints defined by 1484.12.1-2002
         3) No existenace of any defined extensions

         Alternative composite schemas can be assembled by selecting
         from the various alternative component schema listed below.
      </xs:documentation>
		<xs:documentation>
        *****************************************************************************
        **                           CHANGE HISTORY                                **
        *****************************************************************************
        ** 11/14/2003:  1)Updated comment describing vocab/strict.xsd.  Indicated  **
        **                that the strict.xsd is used to validate vocabularies     **
        **                defined in the LOM V1.0 Base Schema.                     **
        **              2)Moved included schema elementNames.xsd just before       **
        **                elementTypes.xsd.                                        **
        **              3)Moved the element declaration for the top-level lom      **
        **                metadata element to a separate file (rootElement.xsd)    **
        **                and included this file just after elementTypes.xsd.      **
        **              4)Moved the XML Schema import statements before the XML    **
        **                Schema include statements.                               **
        **              5)Moved the element group declaration named                **
        **                lom:customElements to a separate file (anyElement.xsd)   **
        **                and included this new file just before the XML Schema    **
        **                import statments.                                        **
        **                                                                         **
        ** 03/15/2004:  1)Switched which vocabulary vaidation approach is the      **
        **                default to be used by this template from vocab/loose.xsd **
        **                to vocab/strict.xsd.  Base on ballot resolution comment  **
        **                addressed on 03/15/2004                                  **
        **              2)Switched the extension validation approach to use        **
        **                extend/strict.xsd.  The XSD now is reprsentative of      **
        **                a schema that can be used to validate strictly           **
        **                conforming LOM XML Instances.                            **
        *****************************************************************************
      </xs:documentation>
	</xs:annotation>
	<!-- Learning Object Metadata -->
	<xs:include schemaLocation="common/anyElement.xsd"/>
	<!-- Element uniqueness:  use one of the following                   -->
	<!-- Use unique/loose.xsd to relax element uniqueness constraints    -->
	<!-- Use unique/strict.xsd to enforce element uniqueness constraints -->
	<!-- <xs:import namespace="http://ltsc.ieee.org/xsd/LOM/unique"
              schemaLocation="unique/loose.xsd"/> -->
	<xs:import namespace="http://ltsc.ieee.org/xsd/LOM/unique" schemaLocation="unique/strict.xsd"/>
	<!-- Vocabulary checking:  use one of the following                             -->
	<!-- Use vocab/loose.xsd to relax vocabulary enumeration constraints            -->
	<!-- Use vocab/strict.xsd to enforce the LOM V1.0 Base Schema vocabulary values -->
	<!-- Use vocab/custom.xsd to enforce custom vocabulary values                   -->
	<!--<xs:import namespace="http://ltsc.ieee.org/xsd/LOM/vocab"
              schemaLocation="vocab/loose.xsd"/> -->
	<xs:import namespace="http://ltsc.ieee.org/xsd/LOM/vocab" schemaLocation="vocab/strict.xsd"/>
	<!-- <xs:import namespace="http://ltsc.ieee.org/xsd/LOM/vocab"
              schemaLocation="vocab/custom.xsd"/> -->
	<!-- Custom elements:  use one of the following                     -->
	<!-- Use extend/strict.xsd to enforce strictly conforming elements  -->
	<!-- Use extend/custom.xsd to allow custom metadata elements        -->
	<xs:import namespace="http://ltsc.ieee.org/xsd/LOM/extend" schemaLocation="extend/strict.xsd"/>
	<!--<xs:import namespace="http://ltsc.ieee.org/xsd/LOM/extend"
              schemaLocation="extend/custom.xsd"/> -->
	<xs:include schemaLocation="common/dataTypes.xsd"/>
	<xs:include schemaLocation="common/elementNames.xsd"/>
	<xs:include schemaLocation="common/elementTypes.xsd"/>
	<xs:include schemaLocation="common/rootElement.xsd"/>
	<xs:include schemaLocation="common/vocabValues.xsd"/>
	<xs:include schemaLocation="common/vocabTypes.xsd"/>
</xs:schema>
