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<?xml version="1.0" encoding="UTF-8"?>
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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://ltsc.ieee.org/xsd/LOM" xmlns:ag="http://ltsc.ieee.org/xsd/LOM/unique" xmlns:voc="http://ltsc.ieee.org/xsd/LOM/vocab" xmlns:ex="http://ltsc.ieee.org/xsd/LOM/extend" targetNamespace="http://ltsc.ieee.org/xsd/LOM" elementFormDefault="qualified" version="IEEE LTSC LOM XML 1.0">
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    <xs:annotation>
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        <xs:documentation>
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         This work is licensed under the Creative Commons Attribution-ShareAlike
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         License.  To view a copy of this license, see the file license.txt,
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         visit http://creativecommons.org/licenses/by-sa/2.0 or send a letter to
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         Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
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      </xs:documentation>
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        <xs:documentation>
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         This file represents a composite schema for validating
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         LOM XML Instances.  This file is built by default to represent a
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         composite schema for validation of the following:
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         1) The use of LOMv1.0 base schema (i.e., 1484.12.1-2002) vocabulary
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            source/value pairs only
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         2) Uniqueness constraints defined by LOMv1.0 base schema
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         3) No existenace of any defined extensions:
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            LOMv1.0 base schema XML element extension,
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            LOMv1.0 base schema XML attribute extension and
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            LOMv1.0 base schema vocabulary data type extension
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         Alternative composite schemas can be assembled by selecting
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         from the various alternative component schema listed below.
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      </xs:documentation>
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      <xs:documentation>
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         This file has been modified by the Knowledge Media Institute of the
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         University Koblenz-Landau (http://iwm.uni-koblenz.de). It contains the
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         following changes:
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         1) Instead of "unique/strict.xsd" the schema "unique/loose.xsd" is imported
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            because this reflects what is said in 1484.12.3-2005, page 35 (section C.1.3)
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         2) In all component XSDs the schemaLocation attribute was amended to the
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            xs:import and xs:include statements. This enables the usage of the schemas
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            with tools which don't deal well with missing schemaLocation informations.
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         This file is available at "http://iwm.uni-koblenz.de/xsd/IEEE-LOM/loose"
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      </xs:documentation>
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    </xs:annotation>
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    <!-- Learning Object Metadata -->
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    <xs:include schemaLocation="common/anyElement.xsd" />
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    <!-- LOM data element uniqueness constraints:  use one of the following         -->
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    <!-- Use unique/loose.xsd to relax element uniqueness constraints               -->
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    <!-- Use unique/strict.xsd to enforce element uniqueness constraints            -->
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    <!-- <xs:import namespace="http://ltsc.ieee.org/xsd/LOM/unique"
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              schemaLocation="unique/loose.xsd"/> -->
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    <xs:import namespace="http://ltsc.ieee.org/xsd/LOM/unique" schemaLocation="unique/loose.xsd" />
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    <!-- Vocabulary value validation:  use one of the following                     -->
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    <!-- Use vocab/loose.xsd to relax vocabulary value constraints                  -->
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    <!-- Use vocab/strict.xsd to enforce the LOMv1.0 base schema vocabulary values  -->
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    <!-- Use vocab/custom.xsd to enforce custom vocabulary values                   -->
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    <!--<xs:import namespace="http://ltsc.ieee.org/xsd/LOM/vocab"
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              schemaLocation="vocab/loose.xsd"/> -->
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    <xs:import namespace="http://ltsc.ieee.org/xsd/LOM/vocab" schemaLocation="vocab/loose.xsd" />
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    <!-- <xs:import namespace="http://ltsc.ieee.org/xsd/LOM/vocab"
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              schemaLocation="vocab/custom.xsd"/> -->
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    <!-- Extension elements/attributes support:  use one of the following           -->
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    <!-- Use extend/strict.xsd to enforce no element/attribute extension            -->
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    <!-- Use extend/custom.xsd to allow element/attribute extension                 -->
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    <xs:import namespace="http://ltsc.ieee.org/xsd/LOM/extend" schemaLocation="extend/custom.xsd" />
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    <!--<xs:import namespace="http://ltsc.ieee.org/xsd/LOM/extend"
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              schemaLocation="extend/custom.xsd"/> -->
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    <xs:include schemaLocation="common/dataTypes.xsd" />
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    <xs:include schemaLocation="common/elementNames.xsd" />
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    <xs:include schemaLocation="common/elementTypes.xsd" />
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    <xs:include schemaLocation="common/rootElement.xsd" />
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    <xs:include schemaLocation="common/vocabValues.xsd" />
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    <xs:include schemaLocation="common/vocabTypes.xsd" />
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</xs:schema>