In this scenario, you take full advantage of ILE function, including service programs. The use of bound calls, used for procedures within modules and service programs, provide improved performance especially if the service program runs in the same activation group as the caller.
Figure 10 shows an example in which an ILE program is bound to two service programs.
The calls from program X to service programs Y and Z are static calls.
See Effect of ILE for details on the effects of ILE on the way your application handles calls, data, files and errors.