Mda-based Report Automatically Generated Model

Report system (RS) is the most basic and important sub-system of the database application system. The method that report system is developed by handcraft programming exists some limitation such as heavy task and short life cycle and so on. So the study about report automatic generation is significant. It aims at reducing the development workload and making the system can adapt to the complicated and changeful applied environment. Considering that the different kind of database system, especially in a enterprise because of system update constantly, causes the existence of different database management system. So, it is very import to develop a new report tool which can connect conveniently to different database system, and have the ability to analyses, processes and synthesizes the data source coming from different database system.With rapid development of Internet, report applications, one of the most important components of information systems, need to be changed towards Web. The report tools are mainly based on client-component or static HTML pages and can't fulfill the request of the user to create reports in real time and the function updates. In addition, report tool doesn't have the function of self-studying and can't produce different style of report when the same times of its running. When the style of the report is changed much, it is difficult to respond to the request that users added the new report style dynamically. Opening is not strong. So, new report tool used on Web is greatly needed to be developed.Software automation becomes the necessity of Web project development, otherwise, MDA that OMG puts forward offers theoretical support for the automation mapping between models. MDA separates the model of software system into PIM and PSM, and then unify them by mapping rules at the same time, in order to get rid of the difficult condition that requirement changes brings. Developer consider business logic modeling only , set up with pieces of PIM that...