1. Aspentech HYSYS and ICARUS, http://www.aspentech.com,accessedFebruary2007. (4) UGS Teamcenter,http://www.ugs.com,accessed February2007.
2. Otto, Kevin N. and Kristin L. Wood, Product Design:Techniques in Reverse Engineering and New Product Development, UpperSaddleRiver, NJ:PrenticeHall,2001.