Fault propagation in a building automation system

A computer implemented method for fault propagation in a building automation system, comprising:

• receiving an input associated with a fault occurring in a building automation system;
• executing a fault propagation of the fault using fault rules for the building automation system and causality relationships in a building information model associated with the building automation system;
• and
• generating, using the fault propagation of the fault, a number of effects of the fault on the building automation system.

A non-transitory computer readable medium having computer readable instructions stored thereon that are executable by a processor to:

• receive an input associated with a fault occurring in a building automation system;
• execute a fault propagation of the fault using:
• causality relationships;
• and
• fault rules for the building automation system;
• wherein the causality relationships are included in a building information model associated with the building automation system;
• and
• generate, using the fault propagation of the fault, a number of root causes of the fault.