| Today, more and more enterprises are applying distributed and functioned multi servers, which connect with web services and visit remote data pools through Internet. This thesis selects the services provided to companies in Export Processing Zone by CIQ as a research model. After a research and analysis of how to construct a distributed system in web environment, the thesis summarizes and expatiates the exploitation of CAMS (Custom Assist Management System) in which author participates. The thesis mainly expatiates the CAMS and user's systems based on various technical constructions, and implements data exchange and system integration by using web service technology. It contains some aspects as followings:1,From the research and analysis, the thesis summarizes the development of distributed system structure. It puts emphasis on depicting .NET technical characteristic, frame buildup, and work principle. As a result, the distributed system model based on .NET frame is provided as well. It further explains the reason why CAMS selects .NET as the distributed system's exploitation and operation flat.2,The thesis adopts a requirement analysis methodology, expatiates the collectivity requirement, analyses the functionality and non-functionality requirement, and explains the basic design idea of CAMS.3,The thesis adopts the .NET distributed software architecture to fetch the collectivity design of CAMS. It focuses on various aspects such as collectivity construction, UI, database, data transfer and the security of CAMS.4,The thesis expatiates the work flow of all kinds of operation of the pass. It adopts UML methods and analyses the use case and functions of an operation child module named "Batch Delivering Goods, Collecting for Entry." It also bats around concept design (viz. ER modeling) and logic design (viz. confirming normative relevant forms) of the data of the child module.5,According to system practice, The thesis analyzes the lack on system function and capability. It puts emphasis on explaining the perfection of the alarm function in CAMS and the designing and implementation of the alarm function of approved pass paper in CAMS.Along with the item established and used, it brings huge economic and societal benefits to KEPZ and its relevant area. The thesis finally gives some suggestions to improve the system, and these suggestions will be implemented in the near future. |
