10. A computing device for generating an operational user interface for a building management system, comprising: a memory; a network interface configured to connect the computing device to a network; a processor configured to execute executable instructions stored in the memory to: generate a widget using geometrical information associated with a building information modeling object and relationship information associated with the building information modeling object, wherein the processor is configured to execute the executable instructions to generate the widget by: retrieving an air distribution loop system from the relationship information associated with the building information modeling object; obtaining three-dimensional geometrical information associated with the building information modeling object; rendering the air distribution loop system and the three-dimensional geometrical information as graphics of the widget; and forming the graphics into a whole graphic of the widget; assign a state variable to the widget by analyzing properties of the building information modeling object and an ontology definition of the building information modeling object, wherein the ontology definition of the building information modeling object includes a naming convention of a class associated with the building information modeling object; and associate the state variable with a point from the building operation system by mapping the point to the state variable; and a display configured to provide the widget and the state variable associated with the widget to a user of the computing device.
10. A computing device for generating an operational user interface for a building management system, comprising: a memory; a network interface configured to connect the computing device to a network; a processor configured to execute executable instructions stored in the memory to: generate a widget using geometrical information associated with a building information modeling object and relationship information associated with the building information modeling object, wherein the processor is configured to execute the executable instructions to generate the widget by: retrieving an air distribution loop system from the relationship information associated with the building information modeling object; obtaining three-dimensional geometrical information associated with the building information modeling object; rendering the air distribution loop system and the three-dimensional geometrical information as graphics of the widget; and forming the graphics into a whole graphic of the widget; assign a state variable to the widget by analyzing properties of the building information modeling object and an ontology definition of the building information modeling object, wherein the ontology definition of the building information modeling object includes a naming convention of a class associated with the building information modeling object; and associate the state variable with a point from the building operation system by mapping the point to the state variable; and a display configured to provide the widget and the state variable associated with the widget to a user of the computing device. 12. The computing device of claim 10 , wherein the processor is configured to execute the executable instructions to change the state variable based on input received from the user.