1  <?xml version="1.0" encoding="ISO-8859-1"?>
 2  <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" 
 3  	xmlns="http://FOO" targetNamespace="http://FOO">
 4  
 5  	<xs:element name="foo">
 6  		<xs:complexType>
 7  			<xs:complexContent>
 8  				<xs:extension base="typeA">
 9  					<xs:attribute name="barA_2" type="xs:string"  use="required"/>					
10  					<xs:attribute name="barA_1" type="xs:string"  use="prohibited"/>					
11  				</xs:extension>
12  			</xs:complexContent>
13  		</xs:complexType>
14  	</xs:element>
15  
16  	<xs:complexType name="typeA">
17  		<xs:attribute name="barA_1" type="xs:string" use="required"/>				
18  	</xs:complexType>
19  
20  </xs:schema>
21  
22