• XML schema attribute maps to UML Attribute with stereotype XSDattribute.
  • default maps to initial UML Attribute or AssociationEnd value.
  • annotation – to UML Attribute or AssociationEnd documentation.
  • name – to UML Attribute or AssociationEnd name.
  • type or content simpleType – to UML Attribute or AssociationEnd type.

Other attributes or elements maps to corresponding tagged values
<attribute 
	default = string  
	fixed = string  
	form = (qualified | unqualified)
	id = ID 
	name = NCName
	ref = QName
	type = QName  
	use = (optional | prohibited | required ) optional 
	{any attributes with non-schema namespace ...} >
	Content: (annotation?,(simpleType?))
</attribute>

Example

<xs:attribute name="age" type="xs:positiveInteger" use="required"/>

Ref value is generated from ref or refString TaggedValue. One of ref or name must be present, but not both.

If ref is present, then all of <simpleType>, form and type must be absent. Type and <simpleType> must not both be present.

Example of attribute UML model (1).

<xs:schema xmlns:nm = "http://nomagic.com" xmlns:xs = "http://www.w3.org/2001/XMLSchema" targetNamespace = "http://nomagic.com"

Example of attribute UML code
	<xs:attribute name = "name" type = "xs:string" default = "minde"
fixed = "fixed_value" form = "qualified" use "optional" >
		<xs:annotation >
			<xs:documentation >name attribute 
documentation</xs:documentation>
		</xs:annotation>
	</xs:attribute>
	<xs:attribute name = "address" fixed = "fixed_value" form =
"qualified" use = "optional" > 
 		<xs:annotation >
			<xs:documentation >surname attribute
documentation‹/xs:documentation>
		</xs:annotation> 
		<xs:simpleType >
			<xs:restriction base = "xs:string" />
		‹/xs:simpleType> 
	</xs:attribute>
	<xs:attribute name = "surname" type    "xs:string" />
	<xs:attributeGroup name = "attr_group" >
		<xs:attribute ref    "nm:name" >
			<xs:annotation >
				<xs:documentation >reference
documentation</xs:documentation>
			</xs:annotation>
		</xs:attribute>
		<xs:attribute ref = "nm:surname" />
	</xs:attributeGroup> 
</xs:schema>