Patent ID: 7752092

Claim:
A computer-implemented method, comprising the steps of: opening, using a processor, a current financial return in a currently executing version of a financial return preparation executable software program (FRPP); receiving a request to display a source of a field upon selecting the field in the current financial return, wherein the field comprises a value obtained from a historical financial return for a non-current period; accessing, using the processor, a mapping between the value and a portion of the historical financial return comprising a source of the value; invoking, by using the mapping, execution of a historical version of the FRPP, with an instruction for displaying the source of the value, after accessing and in response to the request, wherein the current version of the FRPP and the historical version of the FRPP are different executable software programs, which are executing concurrently after invoking execution of the historical version by the current version of the FRPP; and displaying the source of the value within the portion of the historical financial return in a window of the historical version of the FRPP while concurrently displaying the current financial return in a window of the current version of the FRPP.