A ProcObject maps to an ABL external procedure that is executed as persistent, single-run, or singleton. The procedure's internal procedures and functions are then available for access by callers external to the procedure that defines them. On the AppServer, these callers can include other external ABL procedures that execute in the same OpenEdge session, or they can include clients of an AppServer (including Open Clients and SOAP Web service clients) that call these internal procedures and functions as methods.

ProxyGen maps each persistent, single-run, or singleton procedure that you include in an Open Client interface to a corresponding ProcObject, with the internal procedures and functions becoming its methods.