Abstract
In order to enable interoperability of all different professional domains by allowing the computer application software to share and exchange the information of structures in the project life cycle, research on product models has been promoted. In this paper, we developed a product model for connections of steel structures, and implemented it by using XML. We also developed or set up a design generation system, a conformance checking system, and a 3D-CAD system, and integrated these threesystems with the product model by developing converter programs which transform data among these three systems. The validity of the system was demonstrated by applying an actual design case to thissystem.
