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As society continues to progress and development, the promotion of various business models, the accelerating pace of life, the market economy lead the world economy forward, the continuous development and progress of all walks of life, membership card management systems are increasingly becoming the solution of most enterprise market and good top management system, POS terminals placed in the consumer machine shops, and product sales, membership stored-value points, membership card management, e-coupons, online attendance, small ticket printing and other functions, but also by the majority of businesses and consumers of all ages. Department store has become an indispensable part of life. In order to facilitate the management of member information, provide a more simple and convenient operating platform, and the design of the POS scorecard system. Scorecard major companies at home and abroad are very popular. With the scorecard, you can participate in a variety of integration activities, increase customer and business interactions, the customers get more gifts or other benefits in an effective way, can also be increased by means of integration between the various business competitiveness. Department store sales through the integration of management and inexpensive goods, achieve better publicity for their own purposes, to gain customers better reputation, increase customer traffic, get more benefits.The subject of software engineering in accordance with the idea of the POS system for the scorecard needs analysis, business functional analysis, outline design, detailed design, program implementation, and testing of the system design approach. This paper first describes the basic concepts of POS systems, components and features; in the requirements analysis phase, to establish the business functions of the system; the outline design stage, the system module has been divided, and to determine the function of each module ; the detailed design stage, the front-end processing steps of each module are described, and the front-end transaction processing module is further broken down to determine the segmentation function of each module, and processes, and the detailed design of the packet Structure and function of the routing table, implemented in C programming language front-end online transaction processing module; Finally, the design of this system of testing methods, and proposed a system needs to be improved and perfected.
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