There is various metal casting parameters which are now know through various experiment which are quantified. These parameters should be controlled to improve quality of casted products. Metal casting involves design, gating and risering system design, mold design, pouring of molten metal each process has its own effects on quality of the casting. The flow of molten metal in mold accounts for almost 60% of the casting defects and due to this fact it is quite obvious that it is important to pay more and adequate attention on preparation of molds in such a way that molten metal will flow easily and fill the mould cavity properly. The molten metal is elastically deformable during short interval of time when deformation causes stresses remain in the molten metal and hence in the cast parts. After solidification these internal stresses remain in the metal. The change in temperature is the common cause of volumetric changes in the molten metal. The paper will focus more on study of gating system design since flow of the molten metal has significant effect due to this system. Design of this gating system reduces number of defects produced in casting. This system results compare in between traditional and software. On the commercial front if we look at prices trend charts of important foundry raw material we observe that there is consistent rise in prices and it is quite obvious that these will go on increasing since we have no control over market circumstances and forces. In this situation only alternative to remain competent and all foundries people to keep max control over all manufacturing processes and hence related parameters so as to ensure the quality in the process itself.