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The Design and Implementation of Group Purchase System Based on WEBX Framework and the Cache System

Author: ZhangHongHua
Tutor: MaPeiJun
School: Harbin Institute of Technology
Course: Software Engineering
Keywords: group purchase platform WebX distributed cache task dispatch
CLC: TP311.52
Type: Master's thesis
Year: 2011
Downloads: 72
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Abstract


Along with the development of electronic commerce, due to its lower transaction costs and easiness of calling the Scale Economies Effect, group purchase has gradually developed to be an important business application. As the potential of group purchase is appearing, the requirements on the group purchase also increase.In order to meet the requirements on the group purchase business, and make the workflow of the group purchase more considerable and effective, this paper tries to design and implement the model based on the requirements of the group purchase’s workflow. It also carries on some optimization programs to improve the performance of the system.Based on the characters of the real system, it also carries out the requirements analysis according to the group purchase’s workflow model. It elaborates the business characters of group purchase, and extracts the functional and performance requirements of the system. Based on that, it also elaborates the item selecting model, at the same time, it guarantees its expansibility and flexibility. It uses the WebX framework to achieve the group purchase platform, and uses the TAIR distributed cache system to optimize the performance of the platform. It also uses the sub-table strategy to improve the database’s capability, and the DDL layer is used to deal with the routing of the sub-table. Through the implementation of the relevant design scheme and implementing of several optimization schemes, it guarantees the platform’s stability, and provides a series of feasible solutions for the group purchase model.The functional points of the business workflow are classified as interactive part and task part. And the interactive system is divided into the front part and back part: the front part is oriented to the trade user and the back part is oriented to the operator of the system. In the task part of the system, tasks are divided into fixed time tasks and the automatic tasks. The design of tasks model obeys the expansible principle to make the system have the compatibility once the requirement is changed or new requirement is added.This system has perfect item managing processes, extensible task design schema, stable and reliable performance. It also achieves the item selecting model. Compared with other systems, it has better performance value. At the same time, it also provides a reference model for the design and implementation of the group purchase platform.

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