Study On The Application Of System Modeling Based On The Unified Modeling Language

In this paper, firstly, the grammar, the semantic and the modeling regulation of UML are introduced. Then, make a further study on the basis of the theory of Relational Data Base(RDB) and Oriented-Object Relational Data Base(OORDB):discuss the corresponding relation between UML modeling technology and RDB and OORDB, and the cases of OORDB are modeled by UML modeling technology. In Real-Time system, modeling is emphasized primarily on Time and Message, and propose the modeling methods of UML on Time and Message, and provide the modeling cases. Direct against the problem that UML modeling technology supports insufficiently the current focus of software developing ?the middle package of multi-level distributed system, the modeling methods that CORBA middle packages are modeled by UML are given, and provide the cases for simulating modeling. Finally, combining UML modeling technology with Petri Net, discuss the whole course on how to shine semantic diagram of Petri Net upon UML views, and give concrete modeling cases.