Research On Application Of Design Patterns In Uniconr’s Integrated Value-added Service Platform

Design Patterns are the reproducibility solutions of design problems in thesoftware development process. They allow designer and development, properapplication of design patterns is beneficial to develop a high reusability, low couplingof software system. Design patterns provide the methods of packaging designknowledge, which offer an effective solution for the comprehensive value-addedservice platform of China Unicom’s development.This thesis discusses the application of design patterns in China Unicom’s toreuse successful designs and system architecture more easily. In software designator’sintegrated value-added services system and analyzes the MVC model on which thebusiness structure is designed. This structure can be divided into presentation layer,business logic layer, and data logic layer. For specific situations in business system,this thesis applies a Front Controller pattern in the presentation layer, the Strategypattern in the system business logic layer and in the Abstract Factory pattern in thedata logic layer. It also presents the detailed analysis of application structure andeffectiveness of the above three models and fully proves the accuracy and feasibilityin the selection of design models via running the test system.The MVC pattern, Strategy, Front Controller and Abstract Factory patterns inthis thesis are widely used in software design.The appropriate use of then can helpreduce the coupling between system objects and increase system scalability andreusability. Their application in value-added business system design and developmentis the important means to improve the efficiency of software development and thequality assurance for the system. Design Patterns in value-added businessdevelopment and design have a very wide range of applications, and the study of itsrelevant design patterns has profound practical significance and theoretical value.