泛在学习环境下基于工作流的网络教学云平台设计与实现

Design and Implementation of Workflow Based Net-Education on Cloud Platform in U-Learning

根据泛在学习的要求,通过引入开源工作流系统u Engine,开发了一套基于工作流的网络教学云平台.从平台的建设目标出发,介绍了系统框架及工作流技术,在此基础上提出基于工作流的网络教学云平台的总体设计方案,利用图形化组件建立流程模型.并以非正式个性化学习流为例,详细介绍了该流程的设计实现.实例证明,基于Hadoop搭建的分布式云计算机平台,结合了工作流技术,具有海量资源共享高效、系统操作简单和多种智能终端使用灵活等优点,对推动泛在学习的实践应用具有很好的借鉴价值.

According to the demands of U-Learning, by bringing workflow system called u Engine, a workflow based Net-Education on cloud platform is developed. Based on the goal of platform construction, system framework and workflow technology are introduced. The overall design of workflow based Net-Education on cloud platform is presented on the basis of frontal analysis, and workflow model is established by graphical components. Finally, the informal personalized learning flow is provided as an example to introduce design and implementation of the workflow in detail. Example proves that the distributed cloud computing platform based on Hadoop is combined with workflow technology, which has advantages of efficient huge amounts of resources sharing and simply system operation and flexible use by a variety of smart terminal, and has a fairly good reference value in promoting practical application of U-Learning.