| How to realize data synchronization in different area and how to keep data consistent and in time is the key to system's success or failure in developing distant sale management system. The application background of this paper is SUSHI group information system as jiangsu province enterprise information system demonstration project. Based on the research of the facts of SUSHI group , this paper suggests a new solution to sale information system based on distant data transmission in the condition of the network in the headquarter and other branches of the enterprise, and realizes it. This paper discusses the abstract design of SUSHI GROUP information system in the first and discusses the design of the sale subsystem. How to realize the sale subsystem based on Windows DNA frame by Delphi is expounded. This paper discusses how to realize the real time communications between headquarter and branches of the enterprise with SOCKET and prescribes the response protocol between the transmission and acceptance of the data in real time communications. This paper particularly analyses the design and realization of timing data transmission based on FTP between headquarter and branches, including the analysis of the transmission process ,the compression and decompression of data, the data transmission, the treatment of data after arrival.The solution to sale information system based on distant data transmission put forward in this paper is not only adapted to SUSHI group, but also adapted to the same kind of corporations, and it has great reference significance to information system construction of corporations. The system adopts Windows DNA frame, and it is adapted to the variety demands of corporations' business processes with its great agility. |
