Informatics Engineering and Information Science, Part IV International Conference, ICIEIS 2011, Kuala Lumpur, Malaysia, November 12-14, 2011. Proceedings, Part IV - Abd Manaf,Azizah; Sahibuddin,Shamsul; Ahmad,Rabiah; Mohd Daud,Salwani; El-Qawasmeh,Eyas (Communications in Computer and Information Science Ser.)