<?xml version="1.0" encoding="UTF-8"?>
 <xsd:schema xmlns:n="urn:wst-test" 
  xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
  targetNamespace="urn:wst-test">
  
          <xsd:complexType name="TClassSampleType">
      	    <xsd:sequence>
      		    <xsd:element name="intField" type="xsd:int" />
              <xsd:element name="strField" type="xsd:string" minOccurs="1" maxOccurs="1"/>
      	    </xsd:sequence>
          </xsd:complexType>

        <xsd:complexType name="TClassSampleDerivedType">
    		  <xsd:complexContent>
    			  <xsd:extension base="n:TClassSampleType">    
        	    <xsd:sequence>
        		    <xsd:element name="intFieldEx" type="xsd:int" minOccurs="0" maxOccurs="unbounded" />
        	    </xsd:sequence>
            </xsd:extension>
          </xsd:complexContent>
        </xsd:complexType>  
  
 </xsd:schema>
