The Research And Implement On Prototype System Of Requirement Management System Base On Ontology

This thesis base on the corresponding theory and technology of requirement project and management which point out that the sticking point to success of software project is effective requirement management. In national software industry, the problems of frequent change on requirement, disordered management, the insufficient, unsuitable and inaccurate use of requirement information are often occur in the software development process, since the insufficient understanding on the requirement management, lack of theory and tools on requirement management. These problems could make the software project lose control on quality, plan and cost and make bad result at last. Aim at these problems, the thesis have made a detailed analysis, and point out that the effective way to solve these problems is to provide an indicial method on requirement information. It can provide the feature of clarity, consistency , integrality and expansibility for the requirement information, and provide effective requirement management changing and control mechanism to make sure that the requirement information would be indicated entirely and exactly in the software development process, and reach the desire quality of software project.Ontology is a conceptual explanation, a description about the objective concept. Putting the concept of ontology into requirement description could make the requirement information more clear, integrated and consistent and it easy to realize the standardization of the domanial knowledge, the share and reuse. Therefore, this paper combine the concept of ontology with the research of requirement management system, explore the design and implement of requirement management system base on ontology, and with the example of software project management system and cost management subsystem. To reach these goals, this paper discuss the basic theory of ontology, the construction of ontology, formalize denotation and technology aboutstorage, and point out that import ontology into capture and denotation of requirement is benefit for the people to understand the requirement accurately and reduce the maximum isomerous on semantic phraseological problems. Meanwhile, combine with the creation of two classic ontology, this paper discuss the creation of ontology and ontology database in detail.To realize the functions of requirement change, track, query and control of requirement system, this paper also discuss the following topics in detail: related approximate word of the system, requirement information database, matrix of requirement state, validate of requirement, and make a full description on the component of the system such as query mechanism, ontology services and so on.As an instance of application, this paper also make analysis and design for the system structure and relate technology of the prototype system of requirement management system which base on ontology, and figure out part of the result depend on the design.The result of the implement shows that it is feasible method to realize effective requirement management that put ontology into requirement management system.