Abstract
It's a relatively common situation. You break open the shrink-wrap on a million-dollar client-server application and read the directions, which say something like "plug your database in here." The problem is that your legacy data (like that in most large organizations) resides on multiple platforms. In the case of the Commonwealth of Virginia, the legacy pay system runs as a 10-year-old VSAM-based application on an Amdahl MVS host. (...) Most commercial client-server applications assume that your goal is to replace the legacy database. The existing data capabilites are inadequate - the client-server technology is being implemented to enable Virgina to meet the increased data requirements. So how do you transform the existing application to meet the new requirements?
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Reference
Peter Aiken & Bill Girling "Data Reengineering Fits the Bill" InformationWeek May 26, 1997, pp. 8A-12A.
