6. The method of claim 3 , further comprising executing the following operation in the data processing device: associating values and/or formulas with the pre-established DTD.
9. The method of claim 6 , wherein the associating includes associating one or more lists of data objects or formulas producing data objects with each DTD construct which is not a #PCDATA, a choice list, or an attribute list, and does not end with a repetition symbol.