10. The method of claim 8 , wherein the revised grammar is used to complete a plurality of interactions which are completed without the use of an interactive voice response multimodal interface.
8. The method of claim 7 , wherein: i) the first set of input data comprises the set of website data; ii) the second set of input data comprises a set of records of transactions completed using a multimodal interface; and iii) the third set of input data comprises a set of records of transactions completed without using the multimodal interface.