The capabilities of a building management system, or BMS, need to evolve to keep up with the demands of building owners, operators, and tenants. The traditional view of BMS technology (or ‘building automation systems’) has mostly focused on HVAC, and the controllers and on-premise software that supports the system. Any integration with other building systems – e.g. access control, fire control, lighting, etc. – has typically been ‘loosely coupled’, with data being displayed for simple context or awareness.