An expert system for the design of heating, ventilating, and air-conditioning systems

An expert system shell is being used to develop an expert system for the design of heating, ventilating, and air-conditioning (HVAC) systems. The expert system shell has been used to develop several HVAC design knowledge bases. A menu program and several auxiliary programs for gathering data, completing calculations, printing project reports, and passing data between the knowledge bases are needed and have been developed to join the separate knowledge bases into one simple-to-use program unit