Design And Implementation Of Elevator Manufacture Contract Information Management System

In this era of data explosion, the specification and flexibility of the contract management plays an increasingly important role in the development of enterprises.However, for contract management, most of institutions remain in the traditional working model, which not only spends a lot of time and resources, but also can’t improve the efficiency of the contract management effectively. Especially in elevator industry, inefficiency brings devastating loss to enterprise. Therefore, it’s essential to integrate corporate resources and design an efficient contract management system.The development of contract management system for Xizi Otis Elevator Co., Ltd is mainly introduced in this thesis. The system is based on.NET technology, and adopts three-tiered B/S structure. Microsoft Visual Studio2010is used as development tool,and MS SQL Server2008is used as the databases sever, and C#is used as the development language in the system. Distributed communication is implemented with WCF service technology, and the system implements the function for contract management, including process management, role-based access control and contract information management. With the Silverlight,MVVM and ADO.NET technology, high execution efficiency and fast query speed are reached. The tests show that the system meets the needs of users; thereby the system reduces the working pressure on the user, and improves the working efficiency.In this thesis, firstly, the project background, and research status are mentioned, and the structure of the thesis is given. Then, the key technologies used in the system are introduced briefly. In the part of system analysis, the business process, the data flow and use case diagram are introduced firstly, and then specific functions and performance requirements are given, and lastly, technical feasibility and development environment of the system are described. In the part of system design, the architecture and security solutions are proposed, and then the detail design of each module is given, and the database design is introduced with typical E-R diagram and some database tables at last. In the part of system implementation, the implementation details of process management subsystem, role-based access control subsystem and contract information management subsystem are introduced respectively. In the part of system test and running, first of all, function test, UI testing, press testing and security testing are introduced, and the test conclusion is given, then the details of the installation and deployment are described.At last, the works in this thesis are summarized and the further steps are prospected.