This study is on the development of the modeling viewer for the collaborating design on networking environments using java 3d. Many years ago, most of designer had to plan with the drafting tools like compass, ruler and calculator for product design. But after adding the computer system, the design project by CAD system has been the standard in industrial works. At this time, CAD includes 2D drafting, 3D modeling and visualized simulation for the engineering. And in the future and now, for knowledge based information system are including.
In this study for the developing the modeling viewer in collaborating design, the first module to reading CAD model file, the second to managing the read data in DB, and the third to exchanging of data are programmed using java 3d in client-server networking. With these module, the basic step to constructing collaborating design system is applying.