U- and E-Service, Science and Technology : International Conference UNESST 2010, Held as Part of the Future Generation Information Technology Conference, FGIT 2010, Jeju Island, Korea, December 13-15, 2010. Proceedings - Tai-hoon Kim, Jianhua Ma, Wai-chi Fang, Byungjoo Park, Byeong-Ho Kang, Dominik .l.zak ((Communications in Computer and Information Science))