Originally posted by prashant Kakani: Well my question is, do we have to mention an XML schema or DTD file in every XML file, for the purpose of validation?? Is it really required..?? or it can be commented or removed.??
No, you don't have to have an XML Schema reference or a DOCTYPE definition in every XML file. If you think you don't need validation, you don't have to write a DTD or XML Schema document.