Building management systems (BMS) are centralized systems that monitor and control a building's mechanical and electrical equipment. This includes heating, ventilation, air conditioning (HVAC), lighting, security, and fire safety systems. By integrating these functions, BMS helps improve energy efficiency, comfort, and safety within a building. These systems use sensors and software to collect data and automate processes, allowing for real-time adjustments. For example, a BMS can optimize energy use by adjusting heating or cooling based on occupancy levels. Overall, BMS contribute to better building performance and lower operational costs.