This research aims at the specifics of Computer Aided Design (CAD) and Computer Aided Manufacturing (CAM) market. Through discussion of the digital model’s path since geometric construction till completion of a product the major trends are derived. Evolution of hardware for CAM challenges software developers to come up with new solutions. Growing numbers of CAD/CAM software proved to be considerable factor for incompatibility of data formats among systems. Therefore universal data exchange standards were claimed to enable communication. Also a few gaps of functionality among CAD/CAM software products encourages the development of new application, based on research. The set of functions to be integrated into application is supported theoretically according to researched information and tested practically during the realization of software. The most successful standards and tools are selected as the basis of new software. IGES (The Initial Graphics Exchange Specification) standard along with NURBS (Non-Uniform Rational BSpline) curves and surfaces is used for description of geometric data and OpenGL is used as drawing tool. Model analysis and modification for CAM includes following function description and realization: calculation of volume, non-uniform region scaling, 2D packing, curve control point reduction, curve conversion to lines and arcs. Testing results proves that most of the theoretic assumptions are correct and a development of such or similar software is truly... [to full text]