Seyed Esmaeil NajafiEsmail Najafi is an Assistant Professor of Industrial Engineering Department at the Islamic Azad University, Science and Research Branch in Tehran, Iran. He received his B.A. in Power and Water University of Technology (PWUT), his M.S. in Islamic Aza University. and his Ph.D. in Industrial Engineering from Science and Research Branch in Tehran, Iran. His research interests decision making, Data Envelopment Analysis, Engineering management and strategic management . His published research articles appear in journal or intelligent and fuzzy system, Mathematical Problems in Engineering, international journal of data envelopment analysis. Read More Read Less