面向服务的数字教育资源安全整合框架设计及其实现

Design and Implementation of Hierarchical Framework for Service Oriented E-learning Resource Services Secure Composition

面向服务的体系架构（SOA）为数字教育资源共享提供了新的服务模式，设计一个全局的安全框架是面向服务的数字教育资源整合中的难点问题。分析了分布式教育服务资源整合的安全需求，提出了基于分层的数字教育服务资源安全整合框架（SERSHF）模型。SERSHF 采用层次结构展示资源安全整合的全景视图，具有模块化、灵活性和可伸缩性特点, 有助于降低SOA 环境下数字教育资源共享建设的开发成本，发挥SOA 技术优势的整体效应。文章最后给出了SERSHF 在数字教育实践应用中的系统实现。

Service Oriented Architecture (SOA) provides a new sharing mode for e-learning resources, in which global secure service framework design plays a vital role. In this paper, with requirements analysis of the distributed e-learning resources cooperation, we proposed a hierarchical framework for SOA-based e-learning resource services secure composition (SERSHF), which has the characteristics of modularization, flexibility and scalability. SERSHF is helpful to reduce the development costs and exert the full effect of SOA advantages in e-learning. At last the paper also describes the implementation of SERSHF in E-learning practice.