RE: [xml-dev] Elements with same name and different data type

> With the above error message, It looks like the XML schema 
> file is not valid. But I am not sure how XMLSpy is validating 
> this file successfully

XMLSpy does not enforce all the rules of the XML Schema spec, in particular
the Unique Particle Attribution rule. Xerces is a much more conformant
implementation.

Michael Kay
http://www.saxonica.com/