With the emergence of integrated global market and increased competition, many companies are interested in sharing the product model data. One of the solutions is to share the product model data over the computer network or the internet using a standard format. CAD/CAM, STEP, and internet technologies make it possible to share the product model data. This thesis presents methods to visualize 3D STEP geometry data on the internet. To create an internet-based STEP model visualizer, the programming langage Java and 3D scene description language VRML have been experimented. The STEP geometry data can be displayed either by Java applets or by a VRML browser. These visualization technologies are applied to a PDM development. Engineers who have a low cost web browser can share the expensive design information even at a remote site.
