146 IMS in the Parallel Sysplex, Volume I: Reviewing the IMSplex Technology
The IMS component’s modules are specific to that component; however, the BPE service
modules are common across the various address spaces. The base system service functions
are therefore identical in every address space that uses BPE.
7.4 Structured Call Interface (SCI)
Structured Call Interface (SCI), is an IMS address space that provides communications
between IMS components that work together in a sysplex. The Structured Call Interface
address space provides:
Standardized intra-IMSplex communications between members of an IMSplex
Security authorization for IMSplex membership
SCI services to registered members
SCI allows one IMSplex component to communicate to an ...