在基于因特网的教育资源网格体系结构和服务理论研究中,提出了教育资源网格中一种基于XML的个性化文件资源需求描述机制。需求者不仅可以更加准确地表达自己对各类文件资源的需求,还可以指明自己所期望的资源的区域和学校的来源。并且对备选的信息进行优先级的排序,在搜索的过程中按照优先级的顺序对搜索的结果进行优化。解决了资源需求描述机制中对教育资源网格的文件资源需求描述支持较少的问题。
Introduces a personal resource requirement description mechanism based on XML. The background of the subject is the architecture and service theory of education resource grid based on Internet. Users not only can express their resource requirements more accurate, but also can specify their expectations which the region of the resources. The result of the search can be optimized by the order of priority. With this mechanism, education resource grid can express software related personal resource requirements.