<!--
  The 'xsd' namespace is the "schema of schemas" as defined by the XSchema
  standard.  The 'xlink' namespace defines the namespace for XLink attributes
  and elements.  The targetNamespace defines the URI of the namespace
  which THIS XSchema is defining.  Other XSchemas should use this URL
  when referring to things defined in this XSchema.
 -->
 <xsd:schema xmlns="http://www.ics.uci.edu/pub/arch/xArch/xtypes.xsd"
            xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            xmlns:xlink="http://www.w3.org/1999/xlink"
            xmlns:archinstance="http://www.ics.uci.edu/pub/arch/xArch/instance.xsd"
            xmlns:archtypes="http://www.ics.uci.edu/pub/arch/xArch/types.xsd"
            xmlns:archvers="http://www.ics.uci.edu/pub/arch/xArch/versions.xsd"
            targetNamespace="http://www.ics.uci.edu/pub/arch/xArch/xtypes.xsd"
            elementFormDefault="qualified"
            attributeFormDefault="qualified">

  <!-- Import namespaces used -->
  <xsd:import namespace="http://www.ics.uci.edu/pub/arch/xArch/instance.xsd"
              schemaLocation="http://www.isr.uci.edu/projects/xarchuci/core/instance.xsd"/>
  <xsd:import namespace="http://www.ics.uci.edu/pub/arch/xArch/types.xsd"
              schemaLocation="http://www.isr.uci.edu/projects/xarchuci/ext/types.xsd"/>
  <xsd:import namespace="http://www.ics.uci.edu/pub/arch/xArch/versions.xsd"
              schemaLocation="http://www.isr.uci.edu/projects/xarchuci/ext/versions.xsd"/>
              
  <xsd:annotation>
    <xsd:documentation>
      xArch Type XML Schema 1.0
      Depends on: {types.xsd, implementation.xsd, versions.xsd}
      Change Log:
    </xsd:documentation>
  </xsd:annotation>
  
  <!--
    TYPE: Property
  
    This type is a schema definition that encapsulates
    a property as an arbitrary name/value pair of where 
    both the name and the value are strings.
   -->
  <xsd:complexType name="Property">
    <xsd:attribute name="name"  type="xsd:string"/>
    <xsd:attribute name="value" type="xsd:string"/>
  </xsd:complexType>
  
  <!--
    TYPE: XComponent
    
    The XComponent type extends Component to add name/value properties
   -->
  <xsd:complexType name="XComponent">
    <xsd:complexContent>
      <xsd:extension base="archtypes:Component">
        <xsd:sequence>
           <xsd:element name="property" type="Property"
            minOccurs="0" maxOccurs="unbounded"/>		   
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>
  
  <!--
    TYPE: XConnector
    
    The XConnector type extends Connector to add name/value properties
   -->
  <xsd:complexType name="XConnector">
    <xsd:complexContent>
      <xsd:extension base="archtypes:Connector">
        <xsd:sequence>
	      <xsd:element name="property" type="Property"
           minOccurs="0" maxOccurs="unbounded"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>
  
  <!--
    TYPE: XInterfaceType
    
    The XInterfaceType type extends the InterfaceTypeImpl type to add ... protocol data. 
   -->
  <xsd:complexType name="XInterfaceType">
    <xsd:complexContent>
      <xsd:extension base="archvers:InterfaceTypeImplVers">
        <xsd:sequence>
        	<xsd:attribute name="protocol"  type="xsd:string"/>
        	<xsd:attribute name="bitrate"   type="xsd:string"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>

</xsd:schema>