The choice between using resource descriptions alone or using resource assignments affects the processing of remote resources. Remote resources are defined to the local CICS® system but they actually reside in another system. It is possible for a remote resource to have one name in the local CICS system and a different name in the remote system. CICSPlex® SM processes remote resource definitions differently depending on how you are managing your resources.
CICSPlex SM uses the remote system ID and remote name values in the resource definition to identify the remote resource.
The remote system ID in the resource assignment is the name of the connection that will be used between the local and remote system pair. If no name is specified, CICSPlex SM uses the CICS system ID (SYSIDNT) of the remote system as the name of the connection to be used between the local and remote systems.
If you specify a remote name in the resource definition, that name is used when assigning the resource to the related (remote) system. Otherwise, the local name (that is, the name you give the resource definition) is used in both the target and related systems.