Sultan Hamadi Aljahdali, Ph.D. received the B.S from Winona State University, Winona, Minnesota in 1992, and M.S. with honor from Minnesota State University, Mankato, Minnesota, 1996, and Ph.D. Information Technology from George Mason University, Fairfax, Virginia, U.S.A, 2003. He is an associate dean of the college of computers and information systems at Taif University. His research interest includes software testing, developing software reliability models, soft computing for software engineering, computer security, reverse engineering, and medical imaging, also he is a member of ACM, IEEE, and ISCA