Subsystem Interface

The subsystem interface is used to receive system messages and to enter system commands. With extended multiple console support (EMCS) consoles, the subsystem interface is used to receive commands, but not messages. In a single system, multiple NetView® programs can use the subsystem interface. Each NetView program that uses the subsystem interface requires a NetView subsystem address space in addition to the NetView application address space.

You can use the message revision table to intercept z/OS® messages before they are displayed, logged, automated, or routed through your sysplex. With this table, you can make decisions about a message based on its message ID, job name, and other properties and can revise or suppress a message or take certain actions. The message revision table is one of several components that provide automation capabilities.

You can use the command revision table to intercept z/OS commands and make simple modifications inline, without needing to transfer the command to the NetView application address space. Commands can be deleted; parameters and keywords can be added, removed, or modified; nicknames can be expanded (such as creating new command or parameter synonyms); and explanatory WTO messages can be issued. The command revision table is one of several components that provide automation capabilities.

The program-to-program interface (PPI) is an address space provided by the NetView program to enable application programs to communicate with the NetView program and other applications running in the same host. When an application calls the PPI using its application program interface (API), the request is synchronous.