Dr. Mohamed Ahmed El-Dosuky Abd Rab El Naby, Lecturer at Computer Science Dep., Faculty of Computer and Information, Mansoura University, Egypt
E-mail: mouh_sal_010@mans.edu.eg

Dr. Ramadan Elaiess, Assistant professor, Dept. of Information Studies, University of Benghazi, Libya
E-mail: ramelaiess@gmail.com