Migration model for rich internet applications based on PureMVC framework

With the development of Rich Internet Applications (RIAs) in recent years, the RIA technology is now widely deployed for user interface. But large amounts of conventional RIAs have close-coupled modules and not very well structure. They will become a great barrier for large scaled applications. In this paper we present an approach to transform conventional RIAs to structured well RIAs which are based on PureMVC framework. PureMVC is a lightweight framework for creating applications based upon the classic Model-View-Controller design meta-pattern. In this migration model, we adopt abstract structure view and abstract logical view to analyze original RIAs, and then make a smooth transform at a low cost. In addition, we introduce this migration model into a practical RIA and evaluate its utility.