Irwansyah is pursuing PhD in Department of Mechanical Engineering, National Central University, Taiwan, R.O.C. He has received a BE in Mechanical Engineering from Syiah Kuala University, Indonesia, and an M.Eng in Design and Manufacturing Engineering from the Graduate School of Engineering and Technology, Asian Institute of Technology, Thailand in 2001 and 2008. His research focus on Computer-assissted engineering design and 3D model surgical bone reduction including CAD/CAM/CAE, Rapid Design/Prototyping, Reverse Engineering, and Precision Measurement system. He is a senior lecturer of Department of Mechanical Engineering, Syiah Kuala University, Indonesia.