Yajie Dou was born in 1987. He received his Ph.D. degree in management science and engineering from National University of Defense Technology, Changsha, Hunan, China, in 2016. He is currently an associate Professor at the College of Systems Engineering, National University of Defense Technology. He was a visiting scholar at Katholieke Universiteit Leuven, Leuven, Belgium from 2014 to 2015. His research interests include system-of-systems architecture and engineering management, intelligent requirement engineering, and complex project management.