Total quality management in product life cycle

Today, the development of science and information technology supports engineering product designer to solve the more and more complex and difficult requirements of clients for product. The quality assurance of designed product during its life cycle plays a very important role in the context of global and concurrent economy. Many different parts of the final product are manufactured from raw material, different places and manufacturing processes. The designed product runs the risk of being unsatisfactory to requirements of clients. Thus, this paper proposes a method that allows managing the quality of product during its life cycle at design stage.