Research And Implement Of Migrating Online Learning System Based On SOA

Following the fast-stepping IT Industry, cyber education is accelerating its expansion. More and more on-line learning systems are built on ever growing and changing demand. But once an online system is built, it can hardly meet the new demand. Therefore, many old systems are facing the facts that they will be out of use. SOA (Service-Oriented Architecture) may provide a good solution for this awkward situatioin. SOA, regarded as a major trend in software industry, has achieved initial success. Thus it becomes very important that how to migrate old systems to the SOA-based application system.This paper introduces the history and prospects of SOA, and points out the purpose and significance of the study. This paper will include the study of mature application of SOA and the technologies related and also analyse the relevant specification about the e-learning system. Base on the project of "B/S Multimedia Teaching System Based on homemade software" of "10th five-year"plan, this paper redesigned and subdivided service items for future service-oriented modification. Web Service, as the most popular implementation technology of SOA, will be applied to pack a service in the Multimedia Teaching System as an example to fulfill the SOA strategies. SSO (Single Sign-On), as an indispensable part of SOA, will be studied and discussed. Then this paper will come up with a simplified version of SSO and implementation details in the end.