RE: [xml-dev] UPA and schema handling

> 
> It's also obvious that a processor using schema to build a 
> code model is 
>   able to ignore UPA and still get its work done.
> 

Only if its work is confined to giving a yes/no answer to the validity
question.

If the work is to associate types with individual element instances, then
UPA is rather important.

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