The configuration of the building was initially developed through a series of cardboard models. However it was the implementation of aerospace software known as CATIA that made the project feasible both technically and economically. Another computer modelling program called BOCAD was used in conjunction with CATIA. BOCAD was software primarily used for bridge and road construction but was used to convert wire frame CATIA drawings into three-dimensional computer models of structural steel. BOCAD enabled the primary structure to be fabricated which was done offsite therefore eliminating on site construction. Each component was individually bar coded and swiped once arriving on site. This process minimalised the risk of errors and also made the construction of complex geometries efficient. Owing to their mathematical complexity, the sinous stone, glass and titanium curves were designed with the aid of computers.