Research And Design Of SaaS University Information Services In Mobile Mode

At present,more and more university students tend to use mobile terminals to communicate and study. In order to provide services for university students in a better way,the university information services will be presented on the mobile terminal. Nowadays more and more terminal services presented in the form of client,the services will implemented by client here.Since SaaS is a popular software business mode and can provide services for more than one tenant at the same time,the services will try to be designed in SaaS mode to provide services for multiple universities by one application.SaaS applied to mobile area will produce many problems,such as multi-tenant architecture and customized services.This paper focuses on analyzing and solving three major issues of them.The first issue is customized service.The traditional way is customizing the menu on the page,but it is not suitable for the client mode.So,we customize the installation file for tenants with different requirement.The second issue is the mapping of data field in different tenant’s database.Every tenant’s database has its own data fields,in order to achieve unified management,we use metadata configuration method to map the different data fields from different tenants.The third issue is data exchanging between the client and server.Mobile terminal’s Computing ability is weaker than PC,so the client just transport the service id to the server in JSON format which is lightweight.Because of mobile environment’s small bandwidth,we use socket as the transmission protocol since it has a smaller data amount.Design results of this paper include the architecture model, structure model,function model and database model of the system. The architecture mainly include access control and load balancing of the system.The structure model is designed by making the part of the presentation layer to be independent as native layer,which is responsible for checking the local data.The function model is the modules of the system.It is formed by analyzing and comparing the modules of the web university information services and then transplant several parts of them.The database mode is the mode of the tenant database which is disposed on the provider’s server to store the information of the tenants.Finally,this paper verify the solution of data exchanging and services customizing by experiment.Customizing services is implemented by programming to combine the service files. Data exchanging is achieved as follows.First,program the client and server by android,and then analyze the information exchanged between the client and server to form the conclusion.