In virtue of ERWin, the design-step of DB is logically predigested the DB auto modeling is achieved with the converse project and OSQL orders of Erwin.

• 借助数据库建模工具ERWin，将数据库设计步骤进行合理简化，并利用ERWin的逆向工程和OSQL命令集实现了数据库的自动建模。