DFDL - Data Format Description Language?

Does anyone know what DFDL is?  (I think that stands
for Data Format Description Language, but I'm not
sure.)

I was told that I should use it to format documents in
a mixed XML and non-XML repository using XSL-FO. 
Does that make sense? 

Where can I find our more about DFDL? (And how on
earth to people come up with such unpronounceable
acronyms?)

Thanks.
Dennis


		
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