CAD model for performance evaluation

A CAD assistant, PREVENT, has been developed to help evaluate building performance during the various design stages. The system accommodates the whole design process and provides both evaluation and diagnosis upon request. It has the capability to capture the design intent directly from sketches and to evaluate the fitness of the emerging solution to the demands of the building user. The structure and the functions of various components of evaluation by PREVENT are presented. A design model for a performance evaluation by PREVENT is proposed and tested.