Abstract. Advances in CNC technology, coupled with improvements in computer systems provided the basis to review how computer-based systems can be used to allow universal fabrication. The G code no longer meets the current expectations of the program ever modern and complex machines. Indeed, the standard STEP-NC (STEP-Numerical Control) offers new solutions and integration of manufacturing in the full numerical chain. In this paper, we propose a new numerical control based on a standard high conceptual level STEP-NC machining process for prismatic parts, which aims to develop intelligent and powerful tools for sharing and data integration in CAD/CAM systems.