<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
	elementFormDefault="qualified" attributeFormDefault="unqualified">
	
	<xs:complexType name="pluginType">
		<xs:sequence>
			<xs:element name="name" type="xs:string"></xs:element>
			<xs:element name="parameter" type="parameterType" minOccurs="0" maxOccurs="unbounded"></xs:element>
		</xs:sequence>
	</xs:complexType>
	
	<xs:complexType name="timeEstimationPluginType">
		<xs:complexContent>
			<xs:extension base="pluginType"/>
		</xs:complexContent>	
	</xs:complexType>
	
	<xs:complexType name="schedulingPluginType">
		<xs:complexContent>
			<xs:extension base="pluginType">
				<xs:sequence>
					<xs:element name="frequency" type="doubleValueWithUnitType" minOccurs="0" maxOccurs="1"></xs:element>
					<xs:element name="resources" type="resourceType" minOccurs="0" maxOccurs="unbounded"></xs:element>
				</xs:sequence>
			</xs:extension>
		</xs:complexContent>
	</xs:complexType>
	
	<xs:complexType name="energyEstimationPluginType">
		<xs:complexContent>
			<xs:extension base="pluginType">
				<xs:sequence>
					<xs:element name="resources" type="resourceType" minOccurs="0" maxOccurs="unbounded"></xs:element>
				</xs:sequence>
			</xs:extension>
		</xs:complexContent>
	</xs:complexType>
	
	<xs:complexType name="resourceType">
		<xs:sequence>
			<xs:element name="class" type="xs:string" minOccurs="1"></xs:element>
			<xs:element name="type" type="xs:string" minOccurs="0"></xs:element>
			<xs:element name="name" type="xs:string" minOccurs="0" maxOccurs="unbounded"></xs:element>
		</xs:sequence>
	</xs:complexType>
	
		<xs:complexType name="parameterType">
		<xs:annotation>
			<xs:documentation>Parameter of resource. Allows defining additional resource parameters.
			Contains a list of parameter values or a list of key-value pairs.
			Attribute : name - denotes parameter name</xs:documentation>
		</xs:annotation>
		<xs:choice>
			<xs:element name="value" type="stringValueWithUnitType" minOccurs="0" maxOccurs="unbounded"/>
			<xs:sequence>
				<xs:element name="property" minOccurs="0" maxOccurs="unbounded">
					<xs:complexType>
						<xs:sequence>
							<xs:element name="value" type="stringValueWithUnitType" minOccurs="0" maxOccurs="unbounded"/>
						</xs:sequence>
						<xs:attribute name="name" type="xs:string" use="required"/>
					</xs:complexType>
				</xs:element>
			</xs:sequence>
		</xs:choice>
		<xs:attribute name="name" type="xs:string" use="required"/>
	</xs:complexType>
	
	<xs:complexType name="stringValueWithUnitType">
		<xs:simpleContent>
			<xs:extension base="xs:string">
				<xs:attribute name="unit" type="xs:string" use="optional"/>
			</xs:extension>	
		</xs:simpleContent>	
	</xs:complexType>
	
	<xs:complexType name="doubleValueWithUnitType">
		<xs:simpleContent>
			<xs:extension base="xs:double">
				<xs:attribute name="unit" type="xs:string" use="optional"/>
			</xs:extension>	
		</xs:simpleContent>	
	</xs:complexType>
	
	<xs:element name="plugins">
		<xs:annotation>
			<xs:documentation>Schema describing additional data required to create DCWoRMS schema</xs:documentation>
		</xs:annotation>
		<xs:complexType>
			<xs:sequence>
				<xs:element name="timeEstimationPlugin" type="timeEstimationPluginType" minOccurs="0"></xs:element>
				<xs:element name="schedulingPlugin" type="schedulingPluginType" minOccurs="0" maxOccurs="unbounded"></xs:element>
				<xs:element name="energyEstimationPlugin" type="energyEstimationPluginType" minOccurs="0" maxOccurs="unbounded"></xs:element>
			</xs:sequence>
		</xs:complexType>
	</xs:element>
</xs:schema>