The Importance of IS Management

Prentice Hall, Inc.

10-14

nRefurbish legacy systems (cont.) see Fig 10-4

3.Extend the query capabilities - An interactive query capability can be added by creating a new query DB that gathers data from both the old and new portions of the system, through a new DB for interrogation

4.Enhance the output process - write a procedure to dump the data into a 4GL DB, merge old and new data to generate new reports, on paper or online

How Can Legacy Systems be Improved?: Options