9. The method of claim 7 , wherein, a second comparison of the set of comparisons is based on a second merge attribute as selected by the requesting system, wherein the second merge attribute is different from the merge attribute and is associated with the elements of the first XML document and the second XML document being compared in the second comparison, and wherein the second merge attribute is defined to be of type xml:ID in the schema.
10. The method of claim 9 further comprising, sequencing the order of the elements in the merged XML document in accordance with an XSD document.