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