<?xml version="1.0" encoding="ISO-8859-1" ?> <!-- 3.2.3 : 3.2 If ref is present, then all of <simpleType>, form and type must be absent This one tests <simpleType> --> <schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://foo" xmlns:foo="http://foo"> <element name="foo"> <complexType> <attribute ref="foo:bar"> <simpleType> <restriction base="string"> <maxLength value="20"/> </restriction> </simpleType> </attribute> </complexType> </element> <attribute name="bar" type="string" /> </schema>