A member is a specific function (one or more routines) of a multisystem application that is joined to XCF and assigned to a group by the multisystem application. A member concept applies to all authorized routines running in the address space that issued the IXCJOIN macro service. Only for termination purposes (resource clean-up), the member can be associated with an address space, job step, or task.
XCF terminates the member when its association ends. The same address space can have more than one group.
XCF – Cross-system Coupling Facility