The Research Of Requirement Analysis Method Supporting Dynamic Requirement For Information System

The dynamic-changing requirements make the information system requirement analysis process very difficult. In this thesis, we emphasis our research on how to improve the requirement analysis efficiency of information system according to the essence of the requirements, and then offer a sort of requirement analysis method supporting dynamic requirement which can help to analysis information system requirement accurately, agilely and efficiently.Firstly, according to all related literature and documents domestic and overseas, we analyze the development theory, research actuality and existing problem of information systems of manufacturing enterprises under dynamic requirements. Based on the current research achievements, the thesis analyzes the reason of dynamic requirements progress and the relationship between information system development process and enterprise dynamic requirements, using software engineering and object-oriented methodology.Then, the thesis makes a detailed study on the requirement analysis method that supporting dynamic requirement. In order to fulfill the efficient organization, management, integration, conversion and transfer, the thesis construct an integrated organization and management method for ystem requirement analysis information, and design corresponding supporting technology. Aimed at this methodology, we propose a requirement analysis information model which used to organizing and managing system requirement information. The core of the model is used the database table property information connected with system function model as the base information for system requirements analyzing, components requirement analyzing.The method is brought forward which analysis system requirement and component requirement based-on database table property information.Based on the researches, the information system requirement manage software platform is developed by using Visual Basic 6.0.Finally, the thesis concludes with a brief discussion of a case study through applying the requirement analysis methodology and philosophy of information system and the system requirement manage platform into FLYPPM. The analysis of application results indicates that this methodology and philosophy can content with the system requirement analysis process oriented dynamic changing of information system requirement.