XML

XML (eXtensible Markup Language) defines a machine-independent way of exchanging data. For example, an XML representation of the following BDL data structure:

DEFINE Person
RECORD Attribute (XMLName="Person")
   FirstName  VARCHAR(32) Attribute (XMLName="FirstName"),
   LastName   VARCHAR(32) Attribute (XMLName="LastName"),
   Age        INTEGER Attribute (XMLName="Age")
END RECORD

Could be:

<Person>
 <FirstName>John</FirstName>
 <LastName>Smith</LastName>
 <Age>35</Age>
</Person>