MIGRATION FROM CENTRALIZED INFORMATION-PROCESSING TO A CLIENT-SERVER ARCHITECTURE

Client-server architectures will, acording to most experts, dominate most EDP-szenarios of the 90s. Though there is rarely an enterprise where there are not various large EDP-systems in use. Mostly those are centralized mainframe systems, which work the strategical business processes. The migration of these applications into a client-server architecture is a long term and crucial attempt. The proper migration strategy is one of the critical success factors. Understanding the existing system is essential. Therefore restructuring und redocumentation often is a necessary preparation that requires re- and reverse-engineering efforts before migration should be started.