<!– 3.2.3 : 3.2
If ref is present, then all of <simpleType>, form and type must be absent This one tests "form"
–> <schema xmlns=“www.w3.org/2001/XMLSchema” targetNamespace=“foo” xmlns:foo=“foo”>
<element name="foo"> <complexType> <attribute ref="foo:bar" form="qualified"/> </complexType> </element> <attribute name="bar" type="string"/>
</schema>