GAVRIEL SALVENDY is a professor emeritus at Purdue University and the Chair Professor and head of the Department of Industrial Engineering at Tsinghua University, Beijing, China. He is a member of the National Academy of Engineering. He also has written and edited thirty books, including Handbook of Industrial Engineering and Handbook of Human Factors and Ergonomics, both published by Wiley. www.ie.tsinghua.edu.cn/Salvendy

WALDEMAR KARWOWSKI is a professor and the Chair of the Department of Industrial Engineering and Management Systems at the University of Central Florida. He is the editor of over forty books, including Organization and Management of Advanced Manufacturing and Design of Work and Development of Personnel in Advanced Manufacturing, both published by Wiley. www.iems.ucf.edu/about/faculty/karwowski.html