Design and implementation of OA system by SaaS mode based on cloud computing
JI Wen-l · Journal of Xi'an University of Science and Technology · 2014
In order to adapt to the internet and information technology improving rapidly,all most of small-to-medium-sized enterprises need to develop personalization OA system,meanwhile it need to reduced maintenance costs. This paper provides a different way of SaaS Patterns in developing OA system. In this paper,we describe interfaces and data storage of Google App Engine. Some key technologies are studied to build the OA system based on Google App Engine,which include Object Mapping,Data Persistence. In real practice,software providers can deploy the business services needed by OA on the platform. Among the SaaS services,message notification based service coordination techniques are used to obtain the interoperability of different systems during the OA activities. After the testing and tryout,he system has been implemented and provides services for an enterprise at present. Through the application in the Project,the OA system of Google App Engine can improve reliability of system and security of data storage,implement share of information resources,otherwise it provided the foundation for extensibility to an roles in businees.