Compartmented mode

Definition
A computer system is operating in compartmented mode when each user with direct or indirect access to the computer system, its peripherals, remote terminals, or remote hosts, has all of the following:


 * a. A valid personnel clearance for the most restricted information processed in the computer system.
 * b. Formal access approval for, and has signed nondisclosure agreements for that information to which he/she is to have access.
 * c. A valid need-to-know for that information to which he/she is to have access.

Source

 * NCSC-TG-004-88.