Terminal operation

A CICS system makes provision for the following classes of operators; terminal operator, a supervisory terminal operator, and a main terminal operator.

A terminal operator who can use a terminal to perform routine transactions that cause application programs to be processed. You can use a small selection of CICS transactions. For example, you can inquire about, or change, the status of your own terminal.
A supervisory terminal operator who can perform all the duties of a terminal operator, in addition to supervising other operators within a functional group. Your operator security code gives you access to the supervisory terminal transaction, CEST, with which you can monitor and control some of the system resources used by your group.
A main terminal operator who can monitor and control resources in a CICS system. Your operator security code gives you access to the main terminal transaction, CEMT, with which you monitor and control the system resources. Internal security checking might limit the range of resources under your control.