There are three kinds of alarms.
    1. real time
    2. control by grade 
    3. simple display and query

Alarm management system includes the following subsystem:
    1. Alarm module on boards
    2. BAM subsystem
    3. LMT subsystem
    4. Alarm box

FIGURE: Data Flow of Alarm Management System

nice one, alarm process is given well.

presented with nice diagram 

useful document, thanks