The databases for a work request may be distributed, residing on more than one system. In this case, the application program initiating the work uses a distributed communications manager, such as APPC/MVS, to request changes by an application program on another system. The database resource managers, communication resource managers, and RRS components work together to make or not make all changes of both application programs. Figure 1 illustrates distributed resource recovery.

Figure 1. Transaction — Distributed Resource Recovery