处理动态行为描述的MDA模型转换技术

ON MDA MODEL TRANSFORMATION TECHNIQUE OF DEALING WITH DYNAMIC ACTION DESCRIPTION

模型驱动体系结构MDA(Model Driven Architecture)是OMG组织为解决不同中间件平台间的集成问题而提出的一种开放的、供应商中立的软件开发方法。在MDA框架中,开发者首先构建平台无关模型PIM(Platform Independent Model),然后根据到特定平台或实现语言的映射规则/方法,从平台无关模型转换生成平台相关模型PSM(Platform Specific Model),最终生成应用程序代码。采用了UML类图在平台无关层来描述模型的静态结构,并使用动作语言对模型的动态行为进行描述;选择Java EE作为目标平台,制定出相应的转换规则,实现了从动态行为描述到目标代码的转换。使用这样的方法得到的PSM只需要很少的后期处理就可以在平台上直接运行。研究工作较好地解决了当前大部分MDA模型转换工具不能处理动态行为模型转换的问题。

Model Driven Architecture（MDA） is proposed by OMG（Object Management Group） as an open software development method with vendors neutral to resolve the integration of software between different middleware platforms.In MDA framework,developers first construct the Platform Independent Model（PIM）,then transform this model to Platform Specific Model（PSM） according to the mapping rule/method of onto specific platform or implementing language,and eventually generate the applicable programming code.We used UML Class Diagram to describe static structure of the PIM,and used customized Action Language to describe dynamic action of the PIM.We chose Java EE as the target platform,made corresponding transformation rules,and implemented the transformation from dynamic action description to target code.The PSMs derived by our method can run on the platform with only a few post-treatment.Our research handles the problem of dynamic action model transformation preferably well which most of the current MDA transform tools cannot deal with.