1. A computer system for interfacing with a legacy system, said computer system comprising: a graphical user interface operatively connected to said legacy system so as to allow interaction between a user and an interface application of said legacy system, said interface application allowing access to and processing of data stored in said legacy system and said graphical user interface performing the following: receiving, from said user, inputs for accessing specific data from a particular data field through said interface application of said legacy system, said inputs for accessing said specific data from said particular data field comprising at least specific form field inputs to complete form fields and screen terminator inputs to activate for activating screen terminators; displaying, as said inputs are received, multiple screens until a final screen with said particular data field containing said specific data is displayed, said multiple screens and said final screen being generated by said interface application based on said inputs for accessing said specific data from said particular data field; and, when said final screen with said particular data field containing said specific data is displayed, performing the following: allowing said user to select said particular data field; displaying, to said user, a window containing a form for entering a tag to label said particular data field; and receiving, from said user, said tag labeling said particular data field; a sequence tracing device operatively connected to said graphical user interface and automatically tracing a sequence of events resulting in display of said final screen with said particular data field; a data storage device operatively connected to said sequence tracing device and storing said sequence of events with said tag in a database table of sequence-tag records; and a sequence applying device operatively connected to said data storage device and to said graphical user interface, said graphical user interface further subsequently receiving a request, from a requester, referencing said tag, said sequence applying device further accessing said database table of sequence-tag records to retrieve said sequence of events in response to said request referencing said tag, and said sequence applying device automatically applying said sequence of events to said interface application, said applying of said sequence of events to said interface application comprising: automatically initiating any actions noted in said sequence of events as being required for screen-to-screen navigation through said multiple screens to said final screen; and, during said screen-to-screen navigation, causing said graphical user interface to display a list of said multiple screens without displaying said multiple screens, causing said graphical user interface to prompt said requester to input different form field inputs to complete said form fields, and automatically inputting said screen terminator inputs to activate said screen terminators, said different form field inputs being different from said specific form field inputs such that, as a result of said screen-to-screen navigation, said particular data field in said final screen contains different data from said specific data that was previously accessed.