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Most commercial CAD programs are equipped with a user-interface (such as pull-down window-based menu) and a graphics-based set of geometry creation utilities (to draw line, arcs, surfaces, etc.). They are quite useful for mathematically representing the 3-D geometry in solid format and to draw various 2-D views. Most users find such interactive capabilities convenient to create the geometry when designs are distinct from each other. Though, the interactive process of geometry creation is far better than keying data manually. The process is still quite laborious when multiple studies have to be conducted -- each differing only in a small aspect of the total geometry definition. Most studies are directed towards using some type of analysis or simulation to predict changes in design parameters that drives the resultant design geometry. This process is very similar to design modification, remodeling or design automation.