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Performance-Based Content Retrieval for Learning Object Repositories on Grid Environments

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4 Author(s)
Wen-Chung Shih ; Dept. of Comput. Sci., Nat. Chiao Tung Univ., Hsinchu ; Chao-Tung Yang ; Ping-I Chen ; Shian-Shyong Tseng

The sharable content object reference model (SCORM) has become a popular standard for sharing and reusing teaching materials in the field of e-learning. However, efficient retrieval of SCORM-compliant learning objects stored on grid environments is a challenging problem. In this paper, a performance-based approach is proposed to retrieve teaching materials in grid environments. The proposed architecture uses the real-time information gathered by a resource-monitoring tool to estimate the dynamically changing performance of each node, for CPU loading and network bandwidth. In addition, a grid testbed is built to implement the model. Experimental results show that the proposed approach can choose the most appropriate site to reduce the retrieval time

Published in:

Parallel and Distributed Computing, Applications and Technologies, 2006. PDCAT '06. Seventh International Conference on

Date of Conference:

Dec. 2006