Re: [xml-dev] Caution using XML Schema backward- or forward-compatibility as a versioning strategy for data exchange

bryan rasmussen wrote:
> Well, I think changing the semantics of elements falls outside the
> normal understanding of compatibility.
>
>   
I agree...if you change the meaning of an element, you have broken 
forward compatibility.   Forward compatibility for any grammar has to 
take into account not only the data in the elements, but the semantic 
definition of what those elements mean.