1. A method for associating image data of a document with a selected screen display of an user application program with the document being manipulated by an independent image system capable of storing and retrieving the document in an image data form, the method comprising the steps of: directing a first stream of data information from the user application program corresponding to the selected screen display to a video terminal; rendering the first stream of data information corresponding to the user application screen display on a video terminal; splitting said first stream into a parallel stream of said data information forming said screen display without interfering with said first stream of data information of said screen display; monitoring said parallel stream without interfering with said first stream; selecting label indicia of the screen display, said indicia identifying variable data associated with the indicia, the data provided by the user application program; utilizing said parallel stream for calculating a position of each of said selected indicia and associated data in the screen display; placing the calculated positions of each of said selected indicia in the screen display in a first storage area; choosing a document to correspond with said selected screen display; transporting said document to a scanner of the imaging system; utilizing the image system scanner for optically scanning the transported document for generation of image data therefrom corresponding to said document; utilizing the image system for storing said image data in a second storage area; utilizing the image system for calculating a position of the stored image data in said second storage area; recalling from the first storage area the calculated positions of each of said selected indicia in the screen display; assembling the data appearing at each of said calculated positions of said selected indicia in the screen display into a data string; associating the calculated position of the stored image data in said second storage area with said data string; storing said associated calculated position and said data string in a third storage area.