490 ITU‐T's Technical Reports and Specifications these were integrated, then it could be arranged that the HVAC and Lighting turn on only when the access control system shows someone to be inside a room, floor or building. Figure 9 – Example of an IBMS Photo credit: Cisco If all of these are brought under a single umbrella, such a system is known as an Integrated Building Management System (IBMS). Such as a centralized system will enable real time centralized monitoring and control of Infrastructure systems such as building systems (HVAC equipment, Thermostats, Lighting, Life Safety & Security Systems, Physical Security, Elevators, Meters – Energy, Water and Gas, Sewer etc.). It will be a comprehensive, standards based, communications network‐based solution for intelligent building automation and enterprise management. Using advanced software tools, the IBMS provides a smart building the long term capabilities needed to save costs, efficiently manage and optimize building operations and ensure long term sustainability. 7.4.1 Combining Multiple Systems Typically, an IBMS can monitor and manage every data point from every building system. The integration of all the data points of all the building subsystems relatively new and has great potential to monitor and manage a building’s performance. As an example, in the San Francisco Public Utility Commission building, the systems monitored and managed by the IBMS include: Elevators Waste Water Treatment System Mechanical Direct Digital Controls Digital Network Lighting Controls Power Monitoring and Control System Fire Alarm and Detection System Solar Energy Collector Metering Wind Energy Power Generator Metering