Sara Elsir M. Ahmed received her B.Sc., M.Sc. degrees in Computer Science from the School of Mathematical Sciences, University of Khartoum in 1995 and 2003, respectively. Currently, Sara is a Ph.D. candidate with the Computer Science Department, College of Computer Science and Information Technology, Sudan University of Science and Technology, Sudan. Currently, Sara is a faculty member with Management Information System Department, Ahfad University forWoman, Sudan. Here research interests include Artificial Neural Networks, Genetic Algorithms, Genetic Programming, Data Mining, Modeling and Simulation of Nonlinear Systems.