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신용진(Yongjin Shin),김학배(Hagbae Kim),이성표(Sungpyo Lee),남의석(Euiseok Nahm),이영훈(Younghun Lee) 한국정보기술학회 2009 한국정보기술학회논문지 Vol.7 No.3
Information Technology, which is already the key factor in various parts of our society, is changing the way of our urban life in the form of U-City (Ubiquitous-City). U-City provides its residents with many new services in the large, complex area by gathering and integrating data from the various sources. However, since data are influenced by time, context and other related factors, it is very difficult either to predict the size of data, or to process data. Thus reliable and flexible IT resources are necessary in U-City service models. In this paper, we propose “the Cloud Computing based U-City Service Architecture” which helps us to get and expand IT resources easily, whenever and wherever to meet the business requirements. We also analyze the current U-City architectures and the virtual technologies. The new architecture is aiming the vision of “Low Carbon, Green Growth” by sharing of computing resources and saving energy.