Yan Ran is currently an Associate Professor and a Doctoral Supervisor at Chongqing University, a Fixed Researcher at the State Key Laboratory of Mechanical Transmission for Advanced Equipment, Chongqing University, a Committee Member of the Chongqing Science and Technology Association and a Vice President of Chongqing Engineering Graphics Society. Her research interests include CNC machine tools reliability technology and electromechanical product quality engineering. She has hosted and joined in almost 30 projects, published more than 100 academic papers, 22 invention patents, and 6 copyrights of computer software. Genbao Zhang is a Professor at Chongqing University, a Researcher at the State Key Laboratory of Mechanical Transmission for Advanced Equipment, Chongqing University. His current research interests include advanced manufacturing technology, computer integrated manufacturing systems, CNC machine tools reliability, modern quality engineering, and enterprise information. He enjoys a special government allowance from the State Council. He has presided over 80 projects, and published more than 400 academic papers and 11 monographs.