Microsoft Windows using IMS Connect/OTMA (any IBM supported version).
UNIX using IMS Connect/OTMA (any IBM supported version).
z/OS using OTMA.
Note:
IBM IMS Connect provides high-performance communications
for IMS between one or more TCP/IP or local/390 clients and one
or more IMS systems.
IMS(TM) Open Transaction Manager Access (OTMA) is a transaction-based, connectionless
client/server protocol. Though easily generalized, its implementation
is specific to IMS in an MVS(TM) sysplex environment. The domain
of the protocol is restricted to the domain of the MVS Cross-System
Coupling Facility (XCF).
OTMA addresses the problem of connecting a client to a server
so that the client can support a large network, or a large number
of sessions, while maintaining high performance.