The Application And Research Of Object-Oriented Technology Based On UML In Distributed Monitoring System

System analysis and design is the most important part in the software life cycle. A successful software system is always based on good analysis and design.UML(Unified Modeling Language) brings great attention in software engineering, it melts into new ideas, new methods and new technology of software engineering. It not only supports object-oriented analysis and design, but also supports the whole process of software development. Researching the application of UML in various fields is one of research goals of UML.The thesis summarizes the design thought of the object-oriented technology and the development of the software engineering, introduces the characteristics of monitoring system software and its development actuality at present, briefly presents the basic concept of the UML. The process of designing monitoring software by use of the object-oriented technology is discussed emphatically. The process is divided into four steps which is called respectively the global analysis, the local analysis, the global design, and the local design. In the global analysis, the architecture and the correlative elements of the system are defined. In the local analysis, some analysis classes are distilled and some UML sequence diagrams are drawn. In the global design, analysis classes are mapped into design elements in the model and the design mechanism of the system is made certain. In the local design, the properties and operations of the design classes are substantiated, then the analysis model is superseded by the design mode1. Then according to this thought, a set of distributed monitoring system software for freeway is realized; finally a brief introduction of the realized system is given.Modeling with UML has become a trend in object-oriented analysis and design. But because of the complexity of the UML and the limit of the software industry in our country, most software enterprises give it deficient attention. This thesis emphasizes the research and implementation of software system modeling based on UML, which maybe help software developers to master object-oriented modeling technology.