[Ex-plain] Extensibility

Robert Sanderson azaroth at liverpool.ac.uk
Tue Mar 26 18:03:29 CET 2002


> So, a validating parser is not thrown off by a document which contains 
> elements not in the schema given, as long as they are in well-defined 
> namespaces?
> If this is the case, then I agree that our needs for extensibility are 
> probably met by this approach.

As I understand it, a document that conforms to a schema/dtd is valid. But 
a document that has additional namespaces (etc) is just 'well formed'.  
Hence additional namespaces not in the dtd/schema will make it fail for a 
validating parser.

The XML FAQ's entry:

http://www.ucc.ie/xml/#validwf


Rob 


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