Extending the unified modeling language for developing or upgrading an application

The UML is mostly used for visualization, specification, documentation and construction of an application. The same concept can be use when we extend any application just by extending the UML. In this paper we have analyze the different application which uses the concept of extended UML, just like Extending UML for Android Applications, Extending UML for Object-Relational Database Design, Extending UML With Enterprise Architect, Extending UML to Model Navigation and Presentation in Web Applications, Extending UML for Real-Time Component Based Architectures. The advantage of extending UML is that we can easily add the new functionality to the existing system.