面向服务的学习资源网格及其演示系统设计与实现

随着研究的发展,网格技术由计算为中心演变为以服务为中心。文章以学习资源为研究对象构建学习资源网格,将性能各异的学习资源抽象设计为网格服务,屏蔽底层资源的异构性。在此基础上对学习资源网格进行了模拟演示,将抽象的网格技术可视化,形象地展示学习资源网格的工作原理、特点及服务调用流程,使网格研究者和用户对学习资源网格有更清晰直观地理解和认识。

Design and Implementation of Service-oriented Learning Resource Grid and Demonstration System

With the development of technology,the key of gird technology is changing from computing to service.In this paper,learning resources are selected as study objects and the Learning Resource Grid(LRG) is designed.Diversified learning resources are Abstracted and capsulated to grid services for shielding the heterogeneous resources support.On this basis,the demonstration system which concludes data supporting layer and visualization layer is proposed to simulate the grid principles,characteristics and service invocation processes in LRG visually.The research makes the grid technology much more clear and visualized for learners or users of grid.