<!-- edited with XMLSPY v5 rel. 2 U (http://www.xmlspy.com) by Colin Tattersall (Open University of the Netherlands) -->
<xs:schema targetNamespace="http://www.imsglobal.org/xsd/imsld_v1p0" xmlns="http://www.imsglobal.org/xsd/imsld_v1p0" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified" version="IMS LD Level B version 1.0 Final Draft">
	<!--
		IPR, License and Distribution Notices
		This machine readable file is derived from IMS specification IMS Learning Design XML Binding Version 1.0 Final Specification 
		found at http://www.imsglobal.org/learningdesign/ and the original IMS schema binding or code base 
		http://www.imsglobal.org/learningdesign/ldv1p0/imsld_bindv1p0.html.
		
		Recipients of this document are requested to submit, with their comments, notification of any relevant patent 
		claims or other intellectual property rights of which they may be aware that might be infringed by the schema 
		binding contained in this document.
		
		IMS takes no position regarding the validity or scope of any intellectual property or other rights that might be 
		claimed to pertain to the implementation or use of the technology described in this document or the extent to 
		which any license under such rights might or might not be available; neither does it represent that it has made 
		any effort to identify any such rights. Information on IMS’s procedures with respect to rights in IMS specifications 
		can be found at the IMS Intellectual Property Rights web page: http://www.imsglobal.org/ipr/imsipr_policyFinal.pdf.
		
		Copyright © IMS Global Learning Consortium 1999-2007. All Rights Reserved.
		
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		Users of products or services that include this document are hereby granted a worldwide, royalty-free, 
		non-exclusive license to use this document.
		
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		Developers of products or services that provide distribution of this document as is or with modifications are 
		required to register with the IMS community on the IMS website as described in the following two paragraphs:
		
		- If you wish to distribute this document as is, with no modifications, you are hereby granted permission to copy, 
		display and distribute the contents of this document in any medium for any purpose without fee or royalty provided 
		that you include this IPR, License and Distribution notice in its entirety on ALL copies, or portions thereof, that you 
		make and you complete a valid license registration with IMS and receive an email from IMS granting the license. 
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		THIS SPECIFICATION IS BEING OFFERED WITHOUT ANY WARRANTY WHATSOEVER, AND IN PARTICULAR, 
		ANY WARRANTY OF NONINFRINGEMENT IS EXPRESSLY DISCLAIMED. ANY USE OF THIS SPECIFICATION 
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		OR THIRD PARTY FOR ANY DAMAGES OF ANY NATURE WHATSOEVER, DIRECTLY OR INDIRECTLY, ARISING 
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	-->
	<!-- ******************** -->
	<!-- ** Change History ** -->
	<!-- ******************** -->
	<xs:annotation>
		<xs:documentation xml:lang="en">24 October 2002
		Restructured the schemas that were submitted as public draft.
		Defined groups for those content models that need to be extended in level C. 
		Nearly all attributes for the level B elements are declared inline, because they are not re-used in other elements.
		Changed the namespace.
		</xs:documentation>
	</xs:annotation>
	<!-- ********************* -->
	<!-- ** Include modules ** -->
	<!-- ********************* -->
	<xs:include schemaLocation="IMS_LD_Level_B_emaildata.xsd">
		<xs:annotation>
			<xs:documentation xml:lang="en">Include the email-data element.</xs:documentation>
		</xs:annotation>
	</xs:include>
	<xs:include schemaLocation="IMS_LD_Level_B_expression_schema.xsd">
		<xs:annotation>
			<xs:documentation xml:lang="en">Include the expression schema.</xs:documentation>
		</xs:annotation>
	</xs:include>
	<!-- ***************************** -->
	<!-- ** Redefine content models ** -->
	<!-- ***************************** -->
	<xs:redefine schemaLocation="IMS_LD_Level_A.xsd">
		<xs:group name="grp.roles">
			<xs:annotation>
				<xs:documentation xml:lang="en">Add properties into the content model of components, after roles.
				</xs:documentation>
			</xs:annotation>
			<xs:sequence>
				<xs:group ref="grp.roles"/>
				<xs:element ref="properties" minOccurs="0"/>
			</xs:sequence>
		</xs:group>
		<xs:group name="grp.complete-act">
			<xs:annotation>
				<xs:documentation xml:lang="en">Add when-condition-ture and when-property-value-is-set into the choice group of complete-act.
				</xs:documentation>
			</xs:annotation>
			<xs:choice>
				<xs:group ref="grp.complete-act"/>
				<xs:element ref="when-condition-true"/>
				<xs:element ref="when-property-value-is-set" maxOccurs="unbounded"/>
			</xs:choice>
		</xs:group>
		<xs:group name="grp.complete-activity">
			<xs:annotation>
				<xs:documentation xml:lang="en">Add when-property-value-is-set into the choice group of complete-activity.
				</xs:documentation>
			</xs:annotation>
			<xs:choice>
				<xs:group ref="grp.complete-activity"/>
				<xs:element ref="when-property-value-is-set" maxOccurs="unbounded"/>
			</xs:choice>
		</xs:group>
		<xs:group name="grp.complete-play">
			<xs:annotation>
				<xs:documentation xml:lang="en">Add when-property-value-is-set into the choice group of complete-play.
				</xs:documentation>
			</xs:annotation>
			<xs:choice>
				<xs:group ref="grp.complete-play"/>
				<xs:element ref="when-property-value-is-set" maxOccurs="unbounded"/>
			</xs:choice>
		</xs:group>
		<xs:group name="grp.complete-unit-of-learning">
			<xs:annotation>
				<xs:documentation xml:lang="en">Add when-property-value-is-set into the choice group of complete-unit-of-learning.
				</xs:documentation>
			</xs:annotation>
			<xs:choice>
				<xs:group ref="grp.complete-unit-of-learning"/>
				<xs:element ref="when-property-value-is-set" maxOccurs="unbounded"/>
			</xs:choice>
		</xs:group>
		<xs:group name="grp.on-completion">
			<xs:annotation>
				<xs:documentation xml:lang="en">Add change-property-value to on-completion.
				</xs:documentation>
			</xs:annotation>
			<xs:sequence>
				<xs:group ref="grp.on-completion"/>
				<xs:element ref="change-property-value" minOccurs="0" maxOccurs="unbounded"/>
			</xs:sequence>
		</xs:group>
		<xs:group name="grp.method">
			<xs:annotation>
				<xs:documentation xml:lang="en">Add conditions to method.
				</xs:documentation>
			</xs:annotation>
			<xs:sequence>
				<xs:group ref="grp.method"/>
				<xs:element ref="conditions" minOccurs="0" maxOccurs="unbounded"/>
			</xs:sequence>
		</xs:group>
		<xs:group name="grp.service">
			<xs:annotation>
				<xs:documentation xml:lang="en">Add monitor into the choice group of service.
				</xs:documentation>
			</xs:annotation>
			<xs:choice>
				<xs:group ref="grp.service"/>
				<xs:element ref="monitor"/>
			</xs:choice>
		</xs:group>
		<xs:complexType name="time-limitType">
			<xs:annotation>
				<xs:documentation xml:lang="en">Add the attribute property-ref to "simple type" time-limit.
				</xs:documentation>
			</xs:annotation>
			<xs:simpleContent>
				<xs:extension base="time-limitType">
					<xs:attribute name="property-ref" type="xs:IDREF"/>
				</xs:extension>
			</xs:simpleContent>
		</xs:complexType>
	</xs:redefine>
	<!-- ********************** -->
	<!-- ** Re-usable groups ** -->
	<!-- ********************** -->
	<xs:group name="grp.property">
		<xs:sequence>
			<xs:element ref="datatype"/>
			<xs:element ref="initial-value" minOccurs="0"/>
			<xs:element ref="restriction" minOccurs="0" maxOccurs="unbounded"/>
		</xs:sequence>
	</xs:group>
	<xs:group name="grp.condition">
		<xs:sequence>
			<xs:element ref="if"/>
			<xs:element ref="then"/>
			<xs:element ref="else" minOccurs="0"/>
		</xs:sequence>
	</xs:group>
	<xs:group name="grp.then">
		<xs:choice>
			<xs:element ref="show"/>
			<xs:element ref="hide"/>
			<xs:element ref="change-property-value"/>
		</xs:choice>
	</xs:group>
	<xs:group name="grp.show-hide">
		<xs:choice>
			<xs:element ref="class"/>
			<xs:element ref="item-ref"/>
			<xs:element ref="environment-ref"/>
			<xs:element ref="learning-activity-ref"/>
			<xs:element ref="support-activity-ref"/>
			<xs:element ref="activity-structure-ref"/>
			<xs:element ref="play-ref"/>
			<xs:element ref="unit-of-learning-href"/>
		</xs:choice>
	</xs:group>
	<!-- ************************** -->
	<!-- ** Element declarations ** -->
	<!-- ************************** -->
	<xs:element name="properties" type="propertiesType"/>
	<xs:element name="loc-property" type="propertyType"/>
	<xs:element name="locpers-property" type="propertyType"/>
	<xs:element name="locrole-property" type="rolepropertyType"/>
	<xs:element name="globpers-property" type="global-propertyType"/>
	<xs:element name="glob-property" type="global-propertyType"/>
	<xs:element name="property-group" type="property-groupType"/>
	<xs:element name="when-property-value-is-set" type="when-property-value-is-setType"/>
	<xs:element name="when-condition-true" type="when-condition-trueType"/>
	<xs:element name="change-property-value" type="change-property-valueType"/>
	<xs:element name="conditions" type="conditionsType"/>
	<xs:element name="if" type="expressionType"/>
	<xs:element name="then" type="thenType"/>
	<xs:element name="else" type="elseType"/>
	<xs:element name="show" type="show-hideType"/>
	<xs:element name="hide" type="show-hideType"/>
	<xs:element name="monitor" type="monitorType"/>
	<xs:element name="property-value" type="property-valueType"/>
	<xs:element name="calculate" type="expressionType"/>
	<xs:element name="global-definition">
		<xs:complexType>
			<xs:sequence>
				<xs:element ref="title" minOccurs="0"/>
				<xs:group ref="grp.property"/>
				<xs:element ref="metadata" minOccurs="0"/>
			</xs:sequence>
			<xs:attributeGroup ref="attr.uri.req"/>
		</xs:complexType>
	</xs:element>
	<xs:element name="expression" type="expressionType"/>
	<!-- *************** -->
	<!-- ** Text only ** -->
	<!-- *************** -->
	<xs:element name="initial-value" type="xs:string"/>
	<xs:element name="langstring" type="xs:string"/>
	<!-- ******************************* -->
	<!-- ** Text only with attributes ** -->
	<!-- ******************************* -->
	<xs:element name="datatype">
		<xs:complexType>
			<xs:simpleContent>
				<xs:extension base="xs:string">
					<xs:attribute name="datatype" use="required">
						<xs:simpleType>
							<xs:restriction base="xs:token">
								<xs:enumeration value="string"/>
								<xs:enumeration value="boolean"/>
								<xs:enumeration value="integer"/>
								<xs:enumeration value="uri"/>
								<xs:enumeration value="datetime"/>
								<xs:enumeration value="file"/>
								<xs:enumeration value="real"/>
								<xs:enumeration value="text"/>
								<xs:enumeration value="duration"/>
								<xs:enumeration value="other"/>
							</xs:restriction>
						</xs:simpleType>
					</xs:attribute>
				</xs:extension>
			</xs:simpleContent>
		</xs:complexType>
	</xs:element>
	<xs:element name="restriction">
		<xs:complexType>
			<xs:simpleContent>
				<xs:extension base="xs:string">
					<xs:attribute name="restriction-type">
						<xs:simpleType>
							<xs:restriction base="xs:token">
								<xs:enumeration value="minExclusive"/>
								<xs:enumeration value="minInclusive"/>
								<xs:enumeration value="maxExclusive"/>
								<xs:enumeration value="maxInclusive"/>
								<xs:enumeration value="totalDigits"/>
								<xs:enumeration value="fractionDigits"/>
								<xs:enumeration value="length"/>
								<xs:enumeration value="minLength"/>
								<xs:enumeration value="maxLength"/>
								<xs:enumeration value="enumeration"/>
								<xs:enumeration value="whiteSpace"/>
								<xs:enumeration value="pattern"/>
							</xs:restriction>
						</xs:simpleType>
					</xs:attribute>
				</xs:extension>
			</xs:simpleContent>
		</xs:complexType>
	</xs:element>
	<!-- *********** -->
	<!-- ** Empty ** -->
	<!-- *********** -->
	<xs:element name="self">
		<xs:complexType/>
	</xs:element>
	<!-- *************************** -->
	<!-- ** Empty with attributes ** -->
	<!-- *************************** -->
	<xs:element name="class">
		<xs:complexType>
			<xs:attributeGroup ref="attr.class"/>
			<xs:attribute name="with-control" type="xs:boolean"/>
			<xs:attribute name="title" type="xs:string"/>
		</xs:complexType>
	</xs:element>
	<xs:element name="existing">
		<xs:complexType>
			<xs:attributeGroup ref="attr.href.req"/>
		</xs:complexType>
	</xs:element>
	<xs:element name="item-ref">
		<xs:complexType>
			<xs:attributeGroup ref="attr.ref.req"/>
		</xs:complexType>
	</xs:element>
	<xs:element name="play-ref">
		<xs:complexType>
			<xs:attributeGroup ref="attr.ref.req"/>
		</xs:complexType>
	</xs:element>
	<xs:element name="property-ref">
		<xs:complexType>
			<xs:attributeGroup ref="attr.ref.req"/>
		</xs:complexType>
	</xs:element>
	<xs:element name="property-group-ref">
		<xs:complexType>
			<xs:attributeGroup ref="attr.ref.req"/>
		</xs:complexType>
	</xs:element>
	<!-- ******************* -->
	<!-- ** Complex types ** -->
	<!-- ******************* -->
	<xs:complexType name="propertiesType">
		<xs:choice maxOccurs="unbounded">
			<xs:element ref="loc-property"/>
			<xs:element ref="locpers-property"/>
			<xs:element ref="locrole-property"/>
			<xs:element ref="globpers-property"/>
			<xs:element ref="glob-property"/>
			<xs:element ref="property-group"/>
		</xs:choice>
	</xs:complexType>
	<xs:complexType name="propertyType">
		<xs:sequence>
			<xs:element ref="title" minOccurs="0"/>
			<xs:group ref="grp.property"/>
			<xs:element ref="metadata" minOccurs="0"/>
		</xs:sequence>
		<xs:attributeGroup ref="attr.identifier.req"/>
	</xs:complexType>
	<xs:complexType name="rolepropertyType">
		<xs:sequence>
			<xs:element ref="title" minOccurs="0"/>
			<xs:element ref="role-ref"/>
			<xs:group ref="grp.property"/>
			<xs:element ref="metadata" minOccurs="0"/>
		</xs:sequence>
		<xs:attributeGroup ref="attr.identifier.req"/>
	</xs:complexType>
	<xs:complexType name="global-propertyType">
		<xs:choice>
			<xs:element ref="existing"/>
			<xs:element ref="global-definition"/>
		</xs:choice>
		<xs:attributeGroup ref="attr.identifier.req"/>
	</xs:complexType>
	<xs:complexType name="property-groupType">
		<xs:sequence>
			<xs:element ref="title" minOccurs="0"/>
			<xs:choice maxOccurs="unbounded">
				<xs:element ref="property-ref"/>
				<xs:element ref="property-group-ref"/>
			</xs:choice>
			<xs:element ref="metadata" minOccurs="0"/>
		</xs:sequence>
		<xs:attributeGroup ref="attr.identifier.req"/>
	</xs:complexType>
	<xs:complexType name="when-property-value-is-setType">
		<xs:sequence>
			<xs:element ref="property-ref"/>
			<xs:element ref="property-value" minOccurs="0"/>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="change-property-valueType">
		<xs:sequence maxOccurs="unbounded">
			<xs:element ref="property-ref"/>
			<xs:element ref="property-value"/>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="when-condition-trueType">
		<xs:sequence>
			<xs:element ref="role-ref"/>
			<xs:element ref="expression"/>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="conditionsType">
		<xs:sequence>
			<xs:element ref="title" minOccurs="0"/>
			<xs:group ref="grp.condition" maxOccurs="unbounded"/>
			<xs:element ref="metadata" minOccurs="0"/>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="thenType">
		<xs:group ref="grp.then" maxOccurs="unbounded"/>
	</xs:complexType>
	<xs:complexType name="elseType">
		<xs:choice>
			<xs:group ref="grp.then" maxOccurs="unbounded"/>
			<xs:group ref="grp.condition"/>
		</xs:choice>
	</xs:complexType>
	<xs:complexType name="show-hideType">
		<xs:group ref="grp.show-hide" maxOccurs="unbounded"/>
	</xs:complexType>
	<xs:complexType name="monitorType">
		<xs:sequence>
			<xs:choice>
				<xs:element ref="role-ref"/>
				<xs:element ref="self"/>
			</xs:choice>
			<xs:group ref="grp.itemmodel"/>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="property-valueType" mixed="true">
		<xs:annotation>
			<xs:documentation xml:lang="en">The element property-value should contain either text, or langstring, or calculate, or property-ref.</xs:documentation>
		</xs:annotation>
		<xs:choice minOccurs="0">
			<xs:element ref="langstring"/>
			<xs:element ref="calculate"/>
			<xs:element ref="property-ref"/>
		</xs:choice>
	</xs:complexType>
</xs:schema>