The Analysis And Design Of A Hospital Management System Based On MDA

Model Driven Architecture (MDA) is a software development method which is defined by Object Management Group; it has the advantage of implementation system integration effectively and shortens the development cycle, etc. The core idea of MDA method is separating business analysis and business implementation; furthermore,it transfers the attention of software engineers to business domain and business modeling. Firstly,the Process of MDA development method is establishing Platform Independent Model (PIM),which could be stored and identified by computers. Secondly, the PIM model is transferred to Platform Specific Model (PSM) by transformation technology. Finally, the core of applied business code is transferred from PSMs. MDA method is driven by models. In MDA method, models could be executed and could produce outputs; what's more,it could be transferred and reused in heterogeneity platforms and heterogeneity technologies.This paper regards the MDA software development method as the main topic. Base on the deeply research on the basic principle, basic architecture, software development circle, model independent, and model transform implement of MDA, this paper also research deeply on the core techniques of MDA such as UML, MOF, XMI, CWM, etc. Base on these research, the formal descript of model transform from PIM to DBMS PSM, EJB PSM and Web PSM are given. This paper also gives the transform rules about how to transform these PSMs into a Code Model. At last, we implement MDA in a real project. This paper descripts the whole development process.