Patent ID: 7734516

Claim:
A computer-implemented method for revisional delta billing, comprising: capturing data points associated with a first billing at a first point in time using a capture system stored in a memory; capturing data points associated with a second billing at a second point in time using the capture system stored in the memory; comparing the data points captured at the first and second points in time, wherein the comparing includes generating a first adapter billing import file comprising a comma-separated value file; generating a first revisional delta bill based on differences between the data points captured at the first and second points in time, wherein the generating includes importing the first adapter billing import file to generate the first revisional delta bill; capturing data points associated with a third billing at a third point in time using the capture system stored in the memory; comparing the data points captured at the second and third points in time, wherein the comparing includes generating a second adapter billing import file comprising a comma-separated value file; generating a second revisional delta bill based on differences between the data points captured at the second and third points in time, wherein the generating includes importing the second adapter billing import file to generate the second revisional delta bill; and providing the second revisional delta bill for presentation to a user, wherein the first billing is an original billing and wherein the second and third billings are revisional billings, wherein the data points comprise billing records, wherein the billing records include a quantity and cost of at least one item, and wherein the revisional delta bill is based on a difference in the quantity of the at least one item and a total cost of each item, and wherein each item is associated with an Information Technology (IT) migration within a company.