A Purchasing Department is using terminal emulation software as a part of an enterprise accounting system in a mainframe environment. They are planning to deploy an imaging subsystem that will allow…

A Purchasing Department is using terminal emulation software as a part of an enterprise accounting system in a mainframe environment. They are planning to deploy an imaging subsystem that will allow them to scan all invoices and bills of materials. Which of the following is the best integration technique that facilitates the use of information from a mainframe database as indexing data?