<xsd:schema xmlns="http://www.ics.uci.edu/pub/arch/xArch/lookupimplementation.xsd"
            xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            xmlns:archinst="http://www.ics.uci.edu/pub/arch/xArch/instance.xsd"
            xmlns:archtypes="http://www.ics.uci.edu/pub/arch/xArch/types.xsd"
            xmlns:archvariants="http://www.ics.uci.edu/pub/arch/xArch/variants.xsd"
            xmlns:archimpl="http://www.ics.uci.edu/pub/arch/xArch/implementation.xsd"
            targetNamespace="http://www.ics.uci.edu/pub/arch/xArch/lookupimplementation.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/variants.xsd"
              schemaLocation="http://www.isr.uci.edu/projects/xarchuci/ext/variants.xsd"/>
  <xsd:import namespace="http://www.ics.uci.edu/pub/arch/xArch/implementation.xsd"
              schemaLocation="http://www.isr.uci.edu/projects/xarchuci/ext/implementation.xsd"/>

  <xsd:annotation>
    <xsd:documentation>
      xArch Java Implementation XML Schema 1.0
      
      Depends on: {types.xsd, variants.xsd, implementation.xsd}
         Note: The actual dependency set of this extension is
         just types and implementation, but because of XML Schema 
         1.0's single inheritance model, we also extend variants
         so that a component/connector type may have both 
         variants and an implementation.
         
      Change Log:
         2005-12-05: Eric M. Dashofy [edashofy@ics.uci.edu]:
           Initial Development and validated with XSV

    </xsd:documentation>
  </xsd:annotation>

  <!--
    TYPE: LookupImplementation

    The LookupImplementation type contains a name that can
    be used to look up the implementation from some sort of
    registry, nameserver, or other source where implementations
    are found by name.
   -->
  <xsd:complexType name="LookupImplementation">
    <xsd:complexContent>
      <xsd:extension base="archimpl:Implementation">
        <xsd:sequence>
          <xsd:element name="name" type="LookupName"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>

  <!--
    TYPE: LookupName

    A LookupName is the name of an implementation.
   -->
  <xsd:complexType name="LookupName">
    <xsd:simpleContent>
      <xsd:extension base="xsd:string"/>
    </xsd:simpleContent>
  </xsd:complexType>
  
</xsd:schema>