The Improvement of PaaS Platform

PaaS (Platform-as-a-Service) is a business model in the cloud computing era, which provide a server platform or development environment for developers. Compared with the SaaS (Software-as-Service) to end-user, PaaS is more flexibility. Google App engine is a typical PaaS platform, which allows developers to write and run their own applications on the platform. It also helps developers store data and manage the server. However, it is not convenient for developers to write programs using java or Python API development. LongJump, which provide a platform for quickly building enterprise Web applications, significantly shorten the development cycle. But it does not have good scalability and mass data management capabilities, and can only provide service for some developers. This paper describes the techniques and frameworks used by the two platforms. And then we bring forward an improved framework for PaaS platform which combine with the advantages of GAE and LongJump platform by adopting Mashup technology. Using the improved framework, we can build the PaaS platform which is easier and more flexible for development of web applications.