| Chain business system adopted by Heilongjiang Issuing Group of Books, Audio and Video Products is composed of core business system in headquarters chain and selling systems distributed in different nodes. Although they are located in the same chain network,they are implemented independently and there is no data exchange and inventory monitoring.The aim of this paper is to develop a new inventory monitoring system,by which inventory distribution and efficient data exchange will be guaranteed.The inventory monitoring system comprises data synchrony model, security model,graphics management model, information alarm model, visual manipulation model, etc.Among these models, data synchrony model and security model are common models; data synchrony technology based on VPN in data synchrony model, which can regard complicated network circumstances as virtual area networks for chain networks in different areas to guarantee the influent data synchrony. Meantime, MD5 algorithm is utilized to implement the encryption of user information; data comparison, data extraction, data push technologies are adopted in information alarm model. The manipulation of graphic files to data files is completed in graphics management model; moreover, iteration, query and processing by C#language and Class Graphics are applied to accomplish addition, modification, deletion.Additionally, the anonymous method based on C# language is exploited fully in this paper, which can promote the quality of program codes and found a solid base for program maintenance.The process of chain inventory monitoring system is analyzed,which is made of research background, basic theory, model definition, database design, system implementation and software test. The schema of C/S (Client/Server) is utilized in the process of implementing the monitoring system. C# language is adopted as developing platform and SQL Server will provide the data service for the whole system, which can ensure the monitoring and goods circulation for chain inventory efficiently. |
