William Ho is a Lecturer in the Operations & Information Management Group at the Aston Business School, Aston University, UK. In 2004, he obtained his Ph.D. from the Department of Industrial and Systems Engineering at the Hong Kong Polytechnic University, Hong Kong. His research areas include Operations Management, Operations Research, and Knowledge Management. Dr Ji worked in Beijing University of Aeronautics and Astronautics during 1985 and 1987 as teaching staff. He has also worked at the National University of Singapore (NUS) and GINTIC Institute of Manufacturing Technology, Singapore. He joined the Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University in 1996, and currently he is an Associate Professor there. His research interests are Operations Management, Operations Research, and CAD/CAM.

• Optimization Techniques.- The Sequential Pick-and-Place (PAP) Machine.- The Concurrent Chip Shooter (CS) Machine.- The Line Assignment and the Component Allocation Problems.- A Prototype of the Printed Circuit Board Assembly Planning System (PCBAPS).