Sakon Klongboonjit is currently working as an Associate Prof. in industrial engineering at King Mongkut’s Institute of Technology Ladkrabang, Thailand. He received the B.Eng. in Mehcanical Engineering from King Mongkut’s Institute of Technology Ladkrabang, Thailand and M.S. in Computer and Engineering Management from Assumption University, Thailand. For another Master Degree, he got M.S. in Mechanical Engineering from University of Southern California, USA. For doctoral degree, he got his Ph.D. in Mechanical Engineering from University of Southern California, USA. He used to work in Siam United Steel (1995) Co., Ltd. in Department of Engineering. His research interest is in the area of application of AHP, FAHP, TOPSIS and other MCD methods in Energy Management, Heat Transfer, Fluid Dynamics and Machine Design.