Smart building systems integrate various technologies, such as sensors, IoT devices, and automation, to optimize energy efficiency, enhance occupant comfort, and improve operational performance. These systems enable real-time monitoring and control of building systems, including HVAC, lighting, security, and occupancy, allowing for adaptive responses to changing conditions. By analyzing data and adjusting settings intelligently, smart building systems can reduce energy consumption, lower operating costs, and create healthier, more sustainable environments for occupants.