Abstract: For the development of high efficiency and quality SaaS-level application program based on cloud computing, this paper expounds the connotation of cloud platform, adopts the JDO technology to complete the design and management of data based on GAE platform, presents a general development workflow for software and develops a message board for teaching based on cloud computing. The practice shows that this study has certain theoretical significance and practical application value.

Key words: Google app engine, software as a service, Java data object, cloud computing software