Metric The Quality Of UML Class Diagrames

Measurement, which can help people better understanding and controlling the development processes, acts an important role in improving the software quality. In that, there is a growing awareness of the importance of measurement. As the UML (Unified Modeling Language) becoming the standard of software modeling, Object Oriented technology is used more and more widely than before, which makes it become the first choice of developing software. For the special characteristics of the Object Oriented technology and new features of UML models, a lot of traditional methods are not as efficient as what they were in the old time.This paper is intended to research and design a new metrics for the Object Oriented software. UML Class Diagrams is an intermediate product in the software early development, whose quality will greatly affect the quality of the products in later phases. So, this dissertation aims to help people develop effective Object Oriented software by measuring the quality of UML Class Diagrams.Firstly, this paper discusses the measurement theory in detail, based on which we will derive the measurement theory for Object Oriented Software development. Secondly, the dissertation systematically generalizes the research on UML Class Diagrams quality metrics and forms a new metrics by improving traditional quality model and quality metrics model considering UML models metrics'characteristics. Thirdly, this thesis studies the technology of getting information from the UML model in particular. Fourthly, a UML Class Diagrams based software measurement tool is implemented on the knowledge of what we discussed before. Lastly, a case is used to show how people can use the metric tool in practice.