Users typically need an indication that messages are waiting for them on the airline or airport's message board. Some airline and airports call their message board something different, such as the Bulletin Board, Tabla de Noticias, Notices Board, or another such variation. The idea remains the same: establish easy communication with the employees.
Most notice boards have no way to measure and report which users have read the messages. In addition, the most primitive notice boards have no way to send out reminder emails to users who still have not read the message. This is the purpose of the Web-based aviation SMS Message Board. Message Board Alert's function is simply to advise users that messages are waiting for them.
When messages are waiting for users, the Message Board Alert icon has a red background. Message Board Alert is located next to the menu, so it is hard to miss.