The Modeling And Implementation Of Application Service Architecture In Education Cloud Platform

With the development of education informationization and the application ofcloud computing in education. Education cloud platform provided guidance forintegrating education resources and solving the problem about information islands ineducation. At present, Educational institutions had many ways to realize resourcesharing, such as online education, e-learning and remote instruction. To a certainextent, these schemes had eased the problem of sharing educational data resources,while how to share and integrate educational application software, it’s still inexploring. So Far, we hadn’t an effective solution. Based on the theory of activeservice and SaaS, this paper considered all kinds of educational application softwareas SaaS, then provided educational units or organizations with these SaaS, they canorder SaaS according to their need. The application service was information-basedsystem which belonged to educational units, or they provided by software vendor. And the services all deployed on cloud platform. The application service provided formany tenants, so there were many problems, e.g. service customization, differentneeds and users should remember too many passwords. To solve these needs, wedesigned and realized an architecture for educational cloud platform based on cloudcomputing.This paper firstly analyzed the characteristics of the cloud application service,and then presented the function model and process model in the educational cloudapplication service architecture. The main application service architecture is dividedinto four parts: service management, service quickly deployment, dynamic processconfiguration and unified identity authentication. Firstly, based on the theory ofworkflow, this paper discussed process states and business services in applicationservice, and then solved the problem of configuration dynamic process by using thechanges in process states. Secondly,in view of the unified identity authenticationproblem, this paper studied identity authentication technology and Cookie technology,then presented a unified identity authentication based on cookie ticket, and then weused WCF technology to make authentication method as a service which provided tovarious application services. Finally, via analyzed the requirements and process of the cloud service management, the paper put forward a management flow for cloudservice. And then we used UML (Unified Modeling Language) to model forapplication service management process. At last, according to ADSI and themanagement structure of IIS, we designed and realized the feature of rapiddeployment service on IIS.The process of this architecture is, education institutions and units orderededucational application services in cloud service management system according totheir own needs. Then services’ managers deployed software to the cloud applicationservice platform. And then, the tenant collocate their business process according tothe actual situation. While users requested the cloud application service of protectedresources, unified identity authentication system would identify the user’s ID.Based on the above theory and analysis, by using the.net Framework3.5Framework, ASP.NET and SQL Server database, this paper realized the educationcloud application service architecture.