Design And Implementation Of EDS Requirement Change Management System Based On MVVM Architecture

With the rapid development of modern information technology and the rapid expansion of the scale of elevator enterprise, data management in the product design becomes more important, especially Change Requirement which gradually becomes a key link in the design of product. Requirement Change in the process of information system project development is inevitable, the necessary Requirement Change can meet customer needs to a certain Extent, but now for demand management there are many problems to solve, and still exist A lot of management hidden troubles. A more mature information system development organization must avoid the disorder needs to change. More and more elevator enterprises are conscious of the importance of Change Requirement management. the establishment of an information platform、the management of Change Requirement information, has become the important means to improve the product design、product efficiency. Facing the constantly increased Requirement Change of elevator enterprise in product development, enterprise leadership must make accurate decisions as soon as possible, in order to meet product development personnel’s comprehensive grasping of Change Requirement, to guarantee the smooth progress of the product research and development, and greatly improve the efficiency of development.This thesis comes from actual development project of the enterprise, in view of the development needs of Change Requirement management system of xiziOTS such a large elevator enterprises in the design of product. The design of Change Requirement management system is analyzed, connecting with the procedures of enterprise internal to achieve this system.The thesis uses the.net technology for development, uses the three layer structure of the MVVM development mode, and uses the B/S as a development framework, proposed the design mode of Change Requirement management system based on MVVM architecture. On the basis of this design patterns, the thesis mainly completes the Change information management and the Change Authorization management, the Change management supervisor may do centralized management to changes and non-standard products information appeared in the process of elevator product design through this system. Thus, the data chaos is independently dealt with by the Change. This thesis firstly introduces the background and the related theory knowledge of the system, then, the requirements of the system to determine the overall design scheme are analyzed. On the base of contents below, the system function module is designed and completed. The implementation of the Change management module is mainly discussed in detail, at last the realization and tests of the system are given.During the period of the copmletition,it is not avoid appearing some questions, the thesis waits for progress.