Information Technology Department, Al-Balqa Applied University, Jordan 2Department of Computer Science, Princess Sumaya Uni versity for Technology, Jordan 3Department of Computer Science, Loughborough Univer sity, UK
Nadeem Akhtar1 and Saima Khan2 1Department of Computer Science and IT, the Islamia University of Bahawalpur, Pakistan 2Department of Computer Science Faculty of Computer Science and Information Technology, Virtual