Building Management System (BMS)

• Building Management System is a computer-based control system installed in buildings provides automatic monitoring , interaction and management for mechanical and electrical equipment such as electricity , ventilation , water supply , security and fire control to the building . 
• The purpose of BMS 

- To provide the facilities necessary for maintaining a comfortable working environment 

-COntrol by various menas such as time clocks or temperature switches that provide the on and off signals for enabling pumps , fans or valves ( mechanical systems ) . 

• Generally , BMS manages the following three main systems : 

- Building Automation Systems (BAS) 

- Security Automation System ( SAS) 

- FIre Automation System ( FAS)