Uml In A Flexible Development Model Applied Research

The flexible software development mode, which realizes the "close loop" development process, is a new flexible, efficient system development mode. And in this method the developers can respond rapidly to the customer's demand change. However, the implementation of the flexible software development mode is limited by lots of factors - and is difficult to come true.UML (Unified Modeling Language) is the standard modeling language emerged in the OO area, which is well defined and extensible. And it is important that it supports the whole OO system development process.To take the advantages of the flexible software development mode, the writer studied the prerequisites of using the flexible software development mode, and then successfully introduced UML into this new software development mode. This made this new software development mode practical. Furthermore, the paper puts forward the improvement measures aiming at the inconsistency between the demand and model, inside of different models, and between the model and code existed in the development of the flexible software development mode. Finally, the writer introduced the new software development method into the development process of an Equipment Management Information System. It is proved that the flexible software development method, which uses UML as its modeling language, is effective and feasible, and the improvement measure is efficient.