<xs:schema targetNamespace="http://ltsc.ieee.org/xsd/LOM/unique"
           xmlns="http://ltsc.ieee.org/xsd/LOM/unique"
           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 attribute group declarations for metadata
       elements to support loose validation of element uniqueness constraints.

       NOTE: The absence of the enforcement of the uniqueness constraints does not 
       relieve a particular LOM instance from satisfying the uniqueness constraints 
       described in the LOMv1.0 base schema. Applications that require the use of 
       the unique/loose.xsd component XSD have to enforce those uniqueness constraints 
       by other means.
    </xs:documentation> 
    <xs:documentation>
      *****************************************************************************
      **                           CHANGE HISTORY                                **
      *****************************************************************************
      ** 03/15/2004:  1)Updated annoation describing purpose and design of the   **
      **                XSD.                                                     **
      *****************************************************************************
    </xs:documentation>
  </xs:annotation>

  <!-- Attribute group declarations -->

  <!-- Duplicate declarations are included as comments. -->

  <!-- Learning Object Metadata -->
  <xs:attributeGroup name="lom"/>

  <!-- DateTime -->
  <xs:attributeGroup name="DateTimeValue"/>

  <!-- Duration -->
  <xs:attributeGroup name="DurationValue"/>

  <!-- Source -->
  <xs:attributeGroup name="source"/>

  <!-- Value -->
  <xs:attributeGroup name="value"/>

  <!-- 1 General -->
  <xs:attributeGroup name="general"/>

  <!-- 1.1 Identifier -->
  <xs:attributeGroup name="identifier"/>

  <!-- 1.1.1 Catalog -->
  <xs:attributeGroup name="catalog"/>

  <!-- 1.1.2 Entry -->
  <xs:attributeGroup name="entry"/>

  <!-- 1.2 Title -->
  <xs:attributeGroup name="title"/>

  <!-- 1.3 Language -->
  <xs:attributeGroup name="language"/>

  <!-- 1.4 Description -->
  <xs:attributeGroup name="description"/>

  <!-- 1.5 Keyword -->
  <xs:attributeGroup name="keyword"/>

  <!-- 1.6 Coverage -->
  <xs:attributeGroup name="coverage"/>

  <!-- 1.7 Structure -->
  <xs:attributeGroup name="structure"/>

  <!-- 1.8 Aggregation Level -->
  <xs:attributeGroup name="aggregationLevel"/>

  <!-- 2 Life Cycle -->
  <xs:attributeGroup name="lifeCycle"/>

  <!-- 2.1 Version -->
  <xs:attributeGroup name="version"/>

  <!-- 2.2 Status -->
  <xs:attributeGroup name="status"/>

  <!-- 2.3 Contribute -->
  <xs:attributeGroup name="contribute"/>

  <!-- 2.3.1 Role -->
  <xs:attributeGroup name="role"/>

  <!-- 2.3.2 Entity -->
  <xs:attributeGroup name="entity"/>

  <!-- 2.3.3 Date -->
  <xs:attributeGroup name="date"/>

  <!-- 3 Meta-Metadata -->
  <xs:attributeGroup name="metaMetadata"/>

  <!-- 3.1 Identifier
  <xs:attributeGroup name="identifier"/> -->

  <!-- 3.1.1 Catalog
  <xs:attributeGroup name="catalog"/> -->

  <!-- 3.1.2 Entry
  <xs:attributeGroup name="entry"/> -->

  <!-- 3.2 Contribute
  <xs:attributeGroup name="contribute"/> -->

  <!-- 3.2.1 Role
  <xs:attributeGroup name="role"/> -->

  <!-- 3.2.2 Entity
  <xs:attributeGroup name="entity"/> -->

  <!-- 3.2.3 Date
  <xs:attributeGroup name="date"/> -->

  <!-- 3.3 Metadata Schema -->
  <xs:attributeGroup name="metadataSchema"/>

  <!-- 3.4 Language
  <xs:attributeGroup name="language"/> -->

  <!-- 4 Technical -->
  <xs:attributeGroup name="technical"/>

  <!-- 4.1 Format -->
  <xs:attributeGroup name="format"/>

  <!-- 4.2 Size -->
  <xs:attributeGroup name="size"/>

  <!-- 4.3 Location -->
  <xs:attributeGroup name="location"/>

  <!-- 4.4 Requirement -->
  <xs:attributeGroup name="requirement"/>

  <!-- 4.4.1 OrComposite -->
  <xs:attributeGroup name="orComposite"/>

  <!-- 4.4.1.1 Type -->
  <xs:attributeGroup name="type"/>

  <!-- 4.4.1.2 Name -->
  <xs:attributeGroup name="name"/>

  <!-- 4.4.1.3 Minimum Version -->
  <xs:attributeGroup name="minimumVersion"/>

  <!-- 4.4.1.4 Maximum Version -->
  <xs:attributeGroup name="maximumVersion"/>

  <!-- 4.5 Installation Remarks -->
  <xs:attributeGroup name="installationRemarks"/>

  <!-- 4.6 Other Platform Requirements -->
  <xs:attributeGroup name="otherPlatformRequirements"/>

  <!-- 4.7 Duration -->
  <xs:attributeGroup name="duration"/>

  <!-- 5 Educational -->
  <xs:attributeGroup name="educational"/>

  <!-- 5.1 Interactivity Type -->
  <xs:attributeGroup name="interactivityType"/>

  <!-- 5.2 Learning Resource Type -->
  <xs:attributeGroup name="learningResourceType"/>

  <!-- 5.3 Interactivity Level -->
  <xs:attributeGroup name="interactivityLevel"/>

  <!-- 5.4 Semantic Density -->
  <xs:attributeGroup name="semanticDensity"/>

  <!-- 5.5 Intended End User Role -->
  <xs:attributeGroup name="intendedEndUserRole"/>

  <!-- 5.6 Context -->
  <xs:attributeGroup name="context"/>

  <!-- 5.7 Typical Age Range -->
  <xs:attributeGroup name="typicalAgeRange"/>

  <!-- 5.8 Difficulty -->
  <xs:attributeGroup name="difficulty"/>

  <!-- 5.9 Typical Learning Time -->
  <xs:attributeGroup name="typicalLearningTime"/>

  <!-- 5.10 Description
  <xs:attributeGroup name="description"/> -->

  <!-- 5.11 Language
  <xs:attributeGroup name="language"/> -->

  <!-- 6 Rights -->
  <xs:attributeGroup name="rights"/>

  <!-- 6.1 Cost -->
  <xs:attributeGroup name="cost"/>

  <!-- 6.2 Copyright and Other Restrictions -->
  <xs:attributeGroup name="copyrightAndOtherRestrictions"/>

  <!-- 6.3 Description
  <xs:attributeGroup name="description"/> -->

  <!-- 7 Relation -->
  <xs:attributeGroup name="relation"/>

  <!-- 7.1 Kind -->
  <xs:attributeGroup name="kind"/>

  <!-- 7.2 Resource -->
  <xs:attributeGroup name="resource"/>

  <!-- 7.2.1 Identifier
  <xs:attributeGroup name="identifier"/> -->

  <!-- 7.2.1.1 Catalog
  <xs:attributeGroup name="catalog"/> -->

  <!-- 7.2.1.2 Entry
  <xs:attributeGroup name="entry"/> -->

  <!-- 7.2.2 Description
  <xs:attributeGroup name="description"/> -->

  <!-- 8 Annotation -->
  <xs:attributeGroup name="annotation"/>

  <!-- 8.1 Entity
  <xs:attributeGroup name="entity"/> -->

  <!-- 8.2 Date
  <xs:attributeGroup name="date"/> -->

  <!-- 8.3 Description
  <xs:attributeGroup name="description"/> -->

  <!-- 9 Classification -->
  <xs:attributeGroup name="classification"/>

  <!-- 9.1 Purpose -->
  <xs:attributeGroup name="purpose"/>

  <!-- 9.2 Taxon Path -->
  <xs:attributeGroup name="taxonPath"/>

  <!-- 9.2.1 Source
  <xs:attributeGroup name="source"/> -->

  <!-- 9.2.2 Taxon -->
  <xs:attributeGroup name="taxon"/>

  <!-- 9.2.2.1 Id -->
  <xs:attributeGroup name="id"/>

  <!-- 9.2.2.2 Entry
  <xs:attributeGroup name="entry"/> -->

  <!-- 9.3 Description
  <xs:attributeGroup name="description"/> -->

  <!-- 9.4 Keyword
  <xs:attributeGroup name="keyword"/> -->

</xs:schema>
