CICS® on System/390®’s support for CICS Clients has the following benefits:
- Company managers can migrate to client/server solutions quickly, in a
staged manner, by:
- Using the Client 3270 emulator to run existing CICS on System/390 3270 applications.
- Using the EPI to add graphical user interface (GUI) front-ends to existing CICS on System/390 3270
applications. This should increase end-user satisfaction and productivity.
- Using the ECI to develop new client/server applications in which the display
and processing logic is appropriately split between the client and the server.
Different applications at different stages in the above migration
scenario can coexist on the same client.
- The handling
of code page translation between EBCDIC (used on CICS on System/390) and ASCII (used
on workstations) is simplified.
- CICS on System/390’s support for autoinstall of connections and virtual terminals
means that systems developers can design large CICS client/server networks without being
concerned about the problems of installing and maintaining definitions of
all the clients in all the servers; or of installing and maintaining definitions
of all the different virtual 3270 terminals in all the clients.
It also
means that system administrators do not have to extend the resource definitions
of server systems when a new client is added to the network.
- Users of CICS on System/390 3270 applications benefit from the improved end-user
interfaces available to intelligent workstations.

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