<?xml version="1.0" encoding="utf-8"?>
<xs:schema targetNamespace="http://tempuri.org/XMLSchema.xsd"
    elementFormDefault="qualified"
    xmlns="http://tempuri.org/XMLSchema.xsd"
    xmlns:mstns="http://tempuri.org/XMLSchema.xsd"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:ua="http://opcfoundation.org/UA/2011/03/UANodeSet.xsd">
  <xs:import namespace="http://opcfoundation.org/UA/2011/03/UANodeSet.xsd" schemaLocation="UANodeSet.xsd"></xs:import>
  <xs:complexType name="UriTable">
    <xs:sequence>
      <xs:element name="Uri" type="xs:string" minOccurs="0" maxOccurs="unbounded"></xs:element>
    </xs:sequence>
  </xs:complexType>  
  
  <xs:element name="SubSystems" type="SubSystems"></xs:element>
  <xs:complexType name="SubSystems">
    <xs:sequence>
      <xs:element name="NamespaceUris" type ="UriTable" minOccurs="1" maxOccurs="unbounded"></xs:element>
      <xs:element name="SubSystem" type="SubSystem" minOccurs="1" maxOccurs="unbounded"></xs:element>
    </xs:sequence>
  </xs:complexType>
  <!-- définiton des sous-systèmes -->
  <xs:complexType name="SubSystem">
    <xs:sequence>
      <xs:element name="Tag" type="Tag" minOccurs="1" maxOccurs="unbounded"></xs:element>
    </xs:sequence>
    <xs:attribute name="SubSystemName" type="xs:string" use="required"></xs:attribute>
    <xs:attribute name="SubSystemId" type="ua:NodeId" use="required"></xs:attribute>
    <xs:attribute name ="VpiName" type="xs:string" use="required"></xs:attribute>
    <xs:attribute name="AccessMode" use="optional">
      <!-- This attribute indicate how the server will call the VPI : Poll, Subscribe or Both -->
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:enumeration value="Poll"></xs:enumeration>
          <xs:enumeration value="Subscribe"></xs:enumeration>
          <xs:enumeration value="Both"></xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
    <xs:attribute name="FastestSamplingInterval" type="xs:double" use="optional"></xs:attribute>
  </xs:complexType>
  <!-- définition des tags -->
  <xs:complexType name="Tag">
    <xs:attribute name="Id" type="ua:NodeId"></xs:attribute>
    <xs:attribute name="Name" type="xs:string"></xs:attribute>
    <xs:attribute name="Description" type="xs:string"></xs:attribute>
    <xs:attribute name="Type">
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:enumeration value="Boolean"></xs:enumeration>
          <xs:enumeration value="SByte"></xs:enumeration>
          <xs:enumeration value="Byte"></xs:enumeration>
          <xs:enumeration value="Int16"></xs:enumeration>
          <xs:enumeration value="UInt16"></xs:enumeration>
          <xs:enumeration value="Int32"></xs:enumeration>
          <xs:enumeration value="UInt32"></xs:enumeration>
          <xs:enumeration value="Int64"></xs:enumeration>
          <xs:enumeration value="UInt64"></xs:enumeration>
          <xs:enumeration value="Float"></xs:enumeration>
          <xs:enumeration value="Double"></xs:enumeration>
          <xs:enumeration value="DateTime"></xs:enumeration>
          <xs:enumeration value="String"></xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
    <xs:attribute name="Dimension" type="xs:unsignedInt"></xs:attribute>
    <xs:attribute name="NbElement" type="xs:unsignedInt"></xs:attribute>
    <xs:attribute name="AccessRight" default="Input_Output">
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:enumeration value="Input"></xs:enumeration>
          <xs:enumeration value="Output"></xs:enumeration>
          <xs:enumeration value="Input_Output"></xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
    <xs:attribute name="Address" type="xs:string"></xs:attribute>
  </xs:complexType>
</xs:schema>