A well formed XML document contains text and XML tags which confirm with the XML syntax.
Valid XML documents must be well formed and are additionally error checked against a DTD.
< ?xml version = "1.0" encoding = "ISO-8859-1'
?>
<! DOCTYPE employee SYSTEM "emp-dtd">
<employee>
<name> Rekha </name>
<empid> 6098 </empid>
< designation> Manager </designation>
</employee>
A valid document is used when documents require error checking, and many documents need to follow the same guidelines.
