On-Demand Service in Cloud Computing |
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Authors: | Xiong Jinhua Hu Songlin Liu Hui |
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Affiliation: | [1]Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190, P. R. China [2]GPS Research Center of Wuhan University, Wuhan 430079, P. R. China |
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Abstract: | Cloud computing provides a new paradigm for hardware and software infrastructure design as well as planning and usage of information systems. It offers flexible, efficient, inexpensive, and quality services. This paper proposes an on-demand service system using the cloud computing architecture and analyzes important issues such as organization, management, and monitoring of distributed service resources; context-aware on-demand service modeling, on-demand automated service composition in large-scale networks, and service system analysis based on complex system theory. Continuous Operating Reference Station (CORS) of a geo-spatial information system is taken as an example, and its architecture is analyzed from the perspective of cloud computing.Some fundamental questions are raised about its service. |
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Keywords: | cloud computing service composition situation modeling on-demand service |
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