* better information for users, with links to the central systems via SNA Server and LU6.2
Viewed in this fashion, connectivity does not have a specific definition, but is defined in a system's ability to support network protocols such as TCP/IP, LU6.2
, X.25, SPX/IPX, OSI and DECNet.
A direct data communications link from the PC LAN running the judgment processing software to PMI's IBM AS/400 computer was implemented using IBM's LU6.2
cooperative processing protocols.
Thsi approach is used in IBM's CICS TP monitor, using SNA LU6.2 $(10$).
The LU6.2 version of this approach has another benefit; it exploits the half-duplex communication style to minimize the number of messages required to control this distributed execution.