<xs:schema targetNamespace="http://www.opengis.net/sensorML/1.0.1" xmlns:gml="http://www.opengis.net/gml" xmlns:swe="http://www.opengis.net/swe/1.0.1" xmlns:sml="http://www.opengis.net/sensorML/1.0.1" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
<xs:annotation>
<xs:documentation>Defines Basic Process Elements and Types for SensorML
Copyright (c) 2007 OGC, All Rights Reserved.
For conditions, see OGC Software Notice - http://www.opengeospatial.org/legal/
</xs:documentation>
</xs:annotation>
<!-- ================================================= -->
<xs:import namespace="http://www.opengis.net/gml" schemaLocation="../../gml/3.1.1/base/gml.xsd"/>
<xs:import namespace="http://www.opengis.net/swe/1.0.1" schemaLocation="../../sweCommon/1.0.1/swe.xsd"/>
<xs:include schemaLocation="./method.xsd"/>
<!-- ================================================= -->
<xs:element name="_Process" type="sml:AbstractProcessType" abstract="true">
<xs:annotation>
<xs:documentation>base substitution group for all processes</xs:documentation>
</xs:annotation>
</xs:element>
<!-- ================================================= -->
<xs:complexType name="AbstractProcessType" abstract="true">
<xs:complexContent>
<xs:extension base="sml:AbstractSMLType">
<xs:sequence>
<xs:group ref="sml:metadataGroup" minOccurs="0"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<!-- ================================================= -->
<xs:group name="metadataGroup">
<xs:annotation>
<xs:documentation>Group containing all metadata information</xs:documentation>
</xs:annotation>
<xs:sequence>
<xs:group ref="sml:generalInfo" minOccurs="0"/>
<xs:group ref="sml:constraints" minOccurs="0"/>
<xs:group ref="sml:properties" minOccurs="0"/>
<xs:group ref="sml:references" minOccurs="0"/>
<xs:group ref="sml:history" minOccurs="0"/>
</xs:sequence>
</xs:group>
<!-- ================================================= -->
<xs:complexType name="AbstractRestrictedProcessType" abstract="true">
<xs:complexContent>
<xs:restriction base="sml:AbstractProcessType">
<xs:sequence>
<xs:sequence>
<xs:element ref="gml:description" minOccurs="0"/>
<xs:element ref="gml:name" minOccurs="0"/>
</xs:sequence>
<xs:group ref="sml:metadataGroup" minOccurs="0"/>
</xs:sequence>
</xs:restriction>
</xs:complexContent>
</xs:complexType>
<!-- ================================================= -->
<xs:complexType name="AbstractPureProcessType" abstract="true">
<xs:annotation>
<xs:documentation>Complex Type for all soft-typed processes</xs:documentation>
</xs:annotation>
<xs:complexContent>
<xs:extension base="sml:AbstractRestrictedProcessType">
<xs:sequence>
<xs:element ref="sml:inputs" minOccurs="0"/>
<xs:element ref="sml:outputs" minOccurs="0"/>
<xs:element ref="sml:parameters" minOccurs="0"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<!-- ================================================= -->
<xs:element name="inputs">
<xs:annotation>
<xs:documentation>list of input signals</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence minOccurs="0">
<xs:element name="InputList">
<xs:complexType>
<xs:sequence>
<xs:element name="input" type="sml:IoComponentPropertyType" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
</xs:element>
<!-- ================================================= -->
<xs:element name="outputs">
<xs:annotation>
<xs:documentation>list of output signals</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence minOccurs="0">
<xs:element name="OutputList">
<xs:complexType>
<xs:sequence>
<xs:element name="output" type="sml:IoComponentPropertyType" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
</xs:element>
<!-- ================================================= -->
<xs:element name="parameters">
<xs:annotation>
<xs:documentation>list of parameters</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence minOccurs="0">
<xs:element name="ParameterList">
<xs:complexType>
<xs:sequence>
<xs:element name="parameter" type="swe:DataComponentPropertyType" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
</xs:element>
<!-- ================================================= -->
<xs:element name="ProcessModel" type="sml:ProcessModelType" substitutionGroup="sml:_Process">
<xs:annotation>
<xs:documentation>Simple atomic process defined using a ProcessMethod</xs:documentation>
</xs:annotation>
</xs:element>
<xs:complexType name="ProcessModelType">
<xs:annotation>
<xs:documentation>Complex Type for atomic processes</xs:documentation>
</xs:annotation>
<xs:complexContent>
<xs:extension base="sml:AbstractPureProcessType">
<xs:sequence>
<xs:element ref="sml:method"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<!-- ================================================= -->
<xs:element name="ProcessChain" type="sml:ProcessChainType" substitutionGroup="sml:_Process">
<xs:annotation>
<xs:documentation>Process formed by chaining sub-processes</xs:documentation>
</xs:annotation>
</xs:element>
<xs:complexType name="ProcessChainType">
<xs:annotation>
<xs:documentation>Complex Type for process chains</xs:documentation>
</xs:annotation>
<xs:complexContent>
<xs:extension base="sml:AbstractPureProcessType">
<xs:sequence>
<xs:element ref="sml:components"/>
<xs:element ref="sml:connections"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<!-- ================================================= -->
<xs:element name="components">
<xs:annotation>
<xs:documentation>Collection of subprocesses that can be chained using connections</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence minOccurs="0">
<xs:element name="ComponentList">
<xs:complexType>
<xs:sequence>
<xs:element name="component" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence minOccurs="0">
<xs:element ref="sml:_Process"/>
</xs:sequence>
<xs:attribute name="name" type="xs:token" use="required"/>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
</xs:element>
<!-- ================================================= -->
<xs:element name="DataSource" type="sml:DataSourceType" substitutionGroup="sml:_Process">
<xs:annotation>
<xs:documentation>Process with no inputs representing a source of data (Tables, Observations...) for other processes to connect to.</xs:documentation>
</xs:annotation>
</xs:element>
<xs:complexType name="DataSourceType">
<xs:complexContent>
<xs:extension base="sml:AbstractProcessType">
<xs:sequence>
<xs:choice>
<xs:sequence>
<xs:element name="dataDefinition">
<xs:complexType>
<xs:choice minOccurs="0">
<xs:element ref="swe:DataBlockDefinition"/>
<xs:element ref="swe:DataStreamDefinition"/>
</xs:choice>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
</xs:element>
<xs:element name="values">
<xs:complexType>
<xs:complexContent>
<xs:extension base="xs:anyType"/>
</xs:complexContent>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:element name="observationReference">
<xs:complexType>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
</xs:element>
</xs:choice>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<!-- ================================================= -->
<xs:element name="connections">
<xs:annotation>
<xs:documentation>provides links between processes or between data sources and processes</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence minOccurs="0">
<xs:element name="ConnectionList">
<xs:complexType>
<xs:sequence>
<xs:element ref="sml:connection" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
<!-- ================================================= -->
<xs:element name="connection">
<xs:annotation>
<xs:documentation>Specify a connection between two elements</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:choice>
<xs:element ref="sml:Link"/>
<xs:element ref="sml:ArrayLink"/>
</xs:choice>
<xs:attribute name="name" type="xs:token" use="optional"/>
</xs:complexType>
</xs:element>
<!-- ================================================= -->
<xs:element name="Link">
<xs:annotation>
<xs:documentation>Link object used to make connections between processes</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence>
<xs:element name="source">
<xs:complexType>
<xs:attribute name="ref" type="sml:linkRef" use="required"/>
</xs:complexType>
</xs:element>
<xs:element name="destination">
<xs:complexType>
<xs:attribute name="ref" type="sml:linkRef" use="required"/>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute name="type" type="xs:anyURI" use="optional"/>
</xs:complexType>
</xs:element>
<!-- ================================================= -->
<xs:simpleType name="linkRef">
<xs:restriction base="xs:token"/>
</xs:simpleType>
<!-- ================================================= -->
<xs:element name="ArrayLink">
<xs:annotation>
<xs:documentation>Special Link to handle accessing array elements sequentially</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:sequence>
<xs:choice>
<xs:sequence>
<xs:element name="sourceArray">
<xs:complexType>
<xs:attribute name="ref" type="sml:linkRef"/>
</xs:complexType>
</xs:element>
<xs:element name="destinationIndex" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:attribute name="ref" type="sml:linkRef"/>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:sequence>
<xs:element name="destinationArray">
<xs:complexType>
<xs:attribute name="ref" type="sml:linkRef"/>
</xs:complexType>
</xs:element>
<xs:element name="sourceIndex" minOccurs="0">
<xs:complexType>
<xs:attribute name="ref" type="sml:linkRef"/>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:choice>
<xs:element ref="sml:connection" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<!--
NOTE: we intend to support switch between process using special ProcessModels rather than a special Link
because it provides more flexibility (though it is more verbose)
-->
<!-- =================================================================== -->
<!-- Complex Types used for deriving hard-typed processes by restriction -->
<!-- =================================================================== -->
<xs:complexType name="AbstractDerivableProcessType" abstract="true">
<xs:complexContent>
<xs:extension base="sml:AbstractProcessType">
<xs:sequence>
<xs:element name="inputs" type="sml:inputsPropertyType" minOccurs="0"/>
<xs:element name="outputs" type="sml:outputsPropertyType" minOccurs="0"/>
<xs:element name="parameters" type="sml:parametersPropertyType" minOccurs="0"/>
<xs:choice minOccurs="0">
<xs:element ref="sml:method"/>
<xs:sequence>
<xs:element name="components" type="sml:componentsPropertyType"/>
<xs:element name="dataSources" type="sml:dataSourcesPropertyType" minOccurs="0"/>
<xs:element name="connections" type="sml:connectionsPropertyType"/>
</xs:sequence>
</xs:choice>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<!-- ================================================= -->
<xs:complexType name="AbstractListType">
<xs:complexContent>
<xs:extension base="xs:anyType">
<xs:attribute name="id" type="xs:ID" use="optional"/>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<!-- ================================================= -->
<xs:complexType name="inputsPropertyType">
<xs:sequence minOccurs="0">
<xs:element name="InputList" type="sml:AbstractListType"/>
</xs:sequence>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
<!-- ================================================= -->
<xs:complexType name="outputsPropertyType">
<xs:sequence minOccurs="0">
<xs:element name="OutputList" type="sml:AbstractListType"/>
</xs:sequence>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
<!-- ================================================= -->
<xs:complexType name="parametersPropertyType">
<xs:sequence minOccurs="0">
<xs:element name="ParameterList" type="sml:AbstractListType"/>
</xs:sequence>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
<!-- ================================================= -->
<xs:complexType name="componentsPropertyType">
<xs:sequence minOccurs="0">
<xs:element name="ProcessList" type="sml:AbstractListType"/>
</xs:sequence>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
<!-- ================================================= -->
<xs:complexType name="dataSourcesPropertyType">
<xs:sequence minOccurs="0">
<xs:element name="DataSourceList" type="sml:AbstractListType"/>
</xs:sequence>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
<!-- ================================================= -->
<xs:complexType name="connectionsPropertyType">
<xs:sequence minOccurs="0">
<xs:element name="ConnectionList" type="sml:AbstractListType"/>
</xs:sequence>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
<!-- ================================================= -->
<xs:complexType name="IoComponentPropertyType">
<xs:choice minOccurs="0">
<xs:group ref="swe:AnyData"/>
<xs:element ref="swe:ObservableProperty"/>
</xs:choice>
<xs:attribute name="name" type="xs:token" use="required"/>
<xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>
</xs:schema>
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XSD Schema Code: