| 摘要: | Model Driven Architecture (MDA) is a new software development framework. This paper
presents a model-driven approach to the development of Web applications by combining
Conallen's web applications design concept and Kleppe's MDA process. We use the UML
extension mechanism, i.e. stereotypes, to de¯ne the various web elements, and use the
Robustness diagram to represent MVC 2 structure for Web application. After required analysis, we start by using a use case diagram as CIM, and then transform CIM to PIM, and PIM to PSM. We propose mapping rules for model-to-model transformation. Finally, we develop a toolnamed WebPSM2Code, which can automatically transform PSM diagram to Web application code, such as Java, JSP, HTML, Servlet, Javascript, as well as deployment descriptor ¯le. All
the ¯les can automatically address to the correct directory structure for JSP Web application,and the transformation rate is about 39% of the whole system. Using this methodology, systems can be analyzed, designed, and generated more easily and systematically. Thereby, the time that Web programmers spend on coding can be reduced. |
