Applications deployment on the SaaS platform

SaaS (Software as a Service) is a kind of application services which is provided via Internet, and customers can order and receive their peculiar types of software application services from the SaaS provider via the Internet according to their actual needs. This paper analysis current development of SaaS, by means of comparing SaaS model with traditional software model, a new engineering method is illustrated. Besides, this paper assays the architecture of SaaS-based software application, what´s more, the approach of data separate and the implementation of UI is present. The instance of service outsourcing public technical platform at Weihai illustrates design of SaaS architecture.