Design overview

The master terminal program is invoked by the CEMT transaction. The user enters a command to INQUIRE about or SET the status of a set of resources, and the command outputs a display that shows the resultant status of the resources. For a CEMT SET command, this display can be overtyped to alter the status of most of the resources displayed.

Commands are analyzed using the same techniques as the command interpreter described in Command interpreter. A language table is used to define the syntax of commands and the contents of parameter lists which must be passed to DFHEIP to allow execution. In effect, each CEMT command results in the execution of a series of EXEC CICS® INQUIRE and SET commands.

The master terminal program is also used by the CEST and CEOT transactions, which provide subsets of the functions available with CEMT. CEST is for supervisory operators and allows access to a limited set of resources. CEOT only allows changes to the status of the operator’s own terminal.

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