1. Department of Software Engineering, Faculty of Information Technology, Al-Ahliyya Amman University, Amman, Jordan
2. Department of Computer Science, Faculty of Information Technology, Al-Ahliyya Amman University, Amman, Jordan
3. Department of Computer Science, The University of Jordan, Amman, Jordan
4. Faculty of Computer Science and Informatics, Amman Arab University, Amman, Jordan