11. The data processing system of claim 10, said variable data area definition program further comprising formatting facilities that permit a user to specify format parameters for said variable data area of said base document.
11. The data processing system of claim 10, said variable data area definition program further comprising formatting facilities that permit a user to specify format parameters for said variable data area of said base document. 12. The data processing system of claim 11, wherein said formatting facilities further comprise means for extracting at least one of said format parameters from said data set.