<xs:schema 
xmlns:xs="http://www.w3.org/2001/XMLSchema" 
targetNamespace="http://niem.gov/niem/external/iso-19139-gmd/draft-0.1/gmd/dhs-gmo/1.0.0" 
xmlns:gmd="http://niem.gov/niem/external/iso-19139-gmd/draft-0.1/gmd/dhs-gmo/1.0.0"
xmlns:gco="http://niem.gov/niem/external/iso-19139-gmd/draft-0.1/gco/dhs-gmo/1.0.0" 
xmlns:gts="http://niem.gov/niem/external/iso-19139-gmd/draft-0.1/gts/dhs-gmo/1.0.0" 
xmlns:xlink="http://niem.gov/niem/external/w3c-xlink/1.0/dhs-gmo/1.0.0"
elementFormDefault="qualified" version="0.1" >
	<!-- ================================= Annotation ================================ -->
	<xs:annotation>
		<xs:documentation>This file was generated from ISO TC/211 UML class diagrams == 01-26-2005 12:40:04 ====== Status of the dataset or progress of a review
		ISO DTS 19139 Metadata XML Schema "gmd Geographic MetaData extensible markup language"
		 see ../readme.txt    see ../version.txt
		 
		DHS Changes 
     		2006-09-28 Changed namespace
				ns old	http://niem.gov/niem/external/xlink/1.0.0/dhs-gmo/1.0.0
				ns new	http://niem.gov/niem/external/w3c-xlink/1.0/dhs-gmo/1.0.0		

			2006-09-22 Changed namespaces following NIEM conventions
				1) targetNamespace	 http://niem.gov/niem/external/iso-19139-gmd/draft-0.1/gmd/dhs-gmo/1.0.0
				2) gmd namespace	 http://niem.gov/niem/external/iso-19139-gmd/draft-0.1/gmd/dhs-gmo/1.0.0
				3) gco  namespace	 http://niem.gov/niem/external/iso-19139-gmd/draft-0.1/gco/dhs-gmo/1.0.0
				4) gts namespace		 http://niem.gov/niem/external/iso-19139-gmd/draft-0.1/gts/dhs-gmo/1.0.0
				4) xlink namespace	 http://niem.gov/niem/external/xlink/1.0.0/dhs-gmo/1.0.0
		
			2006-09-19 Changes DHS namespaces and schema locations, were
				targetNamespace="http://www.isotc211.org/2005/gmd" 
				xmlns:gmd="http://www.isotc211.org/2005/gmd" 
				xmlns:gco="http://www.isotc211.org/2005/gco" 
				xmlns:gts="http://www.isotc211.org/2005/gts" 
				xmlns:xlink="http://www.w3.org/1999/xlink" 
		</xs:documentation>
	</xs:annotation>
	<!-- ================================== Imports ================================== -->
	<xs:import namespace="http://niem.gov/niem/external/iso-19139-gmd/draft-0.1/gts/dhs-gmo/1.0.0" 
	schemaLocation="../../../gts/dhs-gmo/1.0.0/gts.xsd"/>
	<xs:import namespace="http://niem.gov/niem/external/iso-19139-gmd/draft-0.1/gco/dhs-gmo/1.0.0" 
	schemaLocation="../../../gco/dhs-gmo/1.0.0/gco.xsd"/>
	<xs:include schemaLocation="citation.xsd"/>
	<!-- ########################################################################### -->
	<!-- ########################################################################### -->
	<!-- ================================== Classes ================================= -->
	<xs:complexType name="MD_MaintenanceInformation_Type">
		<xs:annotation>
			<xs:documentation>Information about the scope and frequency of updating</xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:extension base="gco:AbstractObject_Type">
				<xs:sequence>
					<xs:element name="maintenanceAndUpdateFrequency" type="gmd:MD_MaintenanceFrequencyCode_PropertyType"/>
					<xs:element name="dateOfNextUpdate" type="gco:Date_PropertyType" minOccurs="0"/>
					<xs:element name="userDefinedMaintenanceFrequency" type="gts:TM_PeriodDuration_PropertyType" minOccurs="0"/>
					<xs:element name="updateScope" type="gmd:MD_ScopeCode_PropertyType" minOccurs="0" maxOccurs="unbounded"/>
					<xs:element name="updateScopeDescription" type="gmd:MD_ScopeDescription_PropertyType" minOccurs="0" maxOccurs="unbounded"/>
					<xs:element name="maintenanceNote" type="gco:CharacterString_PropertyType" minOccurs="0" maxOccurs="unbounded"/>
					<xs:element name="contact" type="gmd:CI_ResponsibleParty_PropertyType" minOccurs="0" maxOccurs="unbounded"/>
				</xs:sequence>
			</xs:extension>
		</xs:complexContent>
	</xs:complexType>
	<!-- ........................................................................ -->
	<xs:element name="MD_MaintenanceInformation" type="gmd:MD_MaintenanceInformation_Type"/>
	<!-- ........................................................................ -->
	<xs:complexType name="MD_MaintenanceInformation_PropertyType">
		<xs:sequence>
			<xs:element ref="gmd:MD_MaintenanceInformation" minOccurs="0"/>
		</xs:sequence>
		<xs:attributeGroup ref="gco:ObjectReference"/>
		<xs:attribute ref="gco:nilReason"/>
	</xs:complexType>
	<!-- =========================================================================== -->
	<xs:complexType name="MD_ScopeDescription_Type">
		<xs:annotation>
			<xs:documentation>Description of the class of information covered by the information</xs:documentation>
		</xs:annotation>
		<xs:choice>
			<xs:element name="attributes" type="gco:ObjectReference_PropertyType" maxOccurs="unbounded"/>
			<xs:element name="features" type="gco:ObjectReference_PropertyType" maxOccurs="unbounded"/>
			<xs:element name="featureInstances" type="gco:ObjectReference_PropertyType" maxOccurs="unbounded"/>
			<xs:element name="attributeInstances" type="gco:ObjectReference_PropertyType" maxOccurs="unbounded"/>
			<xs:element name="dataset" type="gco:CharacterString_PropertyType"/>
			<xs:element name="other" type="gco:CharacterString_PropertyType"/>
		</xs:choice>
	</xs:complexType>
	<!-- ........................................................................ -->
	<xs:element name="MD_ScopeDescription" type="gmd:MD_ScopeDescription_Type"/>
	<!-- ........................................................................ -->
	<xs:complexType name="MD_ScopeDescription_PropertyType">
		<xs:sequence>
			<xs:element ref="gmd:MD_ScopeDescription" minOccurs="0"/>
		</xs:sequence>
		<xs:attribute ref="gco:nilReason"/>
	</xs:complexType>
	<!-- =========================================================================== -->
	<!-- ........................................................................ -->
	<xs:element name="MD_MaintenanceFrequencyCode" type="gco:CodeListValue_Type" substitutionGroup="gco:CharacterString"/>
	<!-- ........................................................................ -->
	<xs:complexType name="MD_MaintenanceFrequencyCode_PropertyType">
		<xs:sequence>
			<xs:element ref="gmd:MD_MaintenanceFrequencyCode" minOccurs="0"/>
		</xs:sequence>
		<xs:attribute ref="gco:nilReason"/>
	</xs:complexType>
	<!-- =========================================================================== -->
	<!-- ........................................................................ -->
	<xs:element name="MD_ScopeCode" type="gco:CodeListValue_Type" substitutionGroup="gco:CharacterString"/>
	<!-- ........................................................................ -->
	<xs:complexType name="MD_ScopeCode_PropertyType">
		<xs:sequence>
			<xs:element ref="gmd:MD_ScopeCode" minOccurs="0"/>
		</xs:sequence>
		<xs:attribute ref="gco:nilReason"/>
	</xs:complexType>
	<!-- =========================================================================== -->
</xs:schema>

• MD_MaintenanceFrequencyCode_PropertyType
• MD_MaintenanceInformation_PropertyType
• MD_MaintenanceInformation_Type
• MD_ScopeCode_PropertyType
• MD_ScopeDescription_PropertyType
• MD_ScopeDescription_Type

• MD_MaintenanceFrequencyCode
• MD_MaintenanceInformation
• MD_ScopeCode
• MD_ScopeDescription