Word

Description

Message Box

the same as an alert box, a small dialog box appearing on a computer
screen that notifies the user of a changing condition with the application. For
example, a message box might appear telling the user that the program is
running low on memory and suggest closing down other applications to free up
resources. The message box will disappear only after the user acknowledges
the message by clicking on one of the options offered.
Message Integrity
The communication sent is the same as the communication received.