1. Management Information System Department, College of Business Administration, Prince Sattam Bin Abdulaziz University, Al-Kharj 16278, Saudi Arabia
2. Department of Computer Science, College of Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
3. Department of Computing and Mathematics, Manchester Metropolitan University, Manchester M156BH, UK
4. School of Information and Physical Sciences, The University of Newcastle, Newcastle 2308, Australia