Design And Implementation Of University On-line Forum System

With the development of information technology,the information construction of university has become an important means of improving the teaching quality and efficiency.The online forum that establish communication channels among teachers and students is an important part of university information construction.However,with the accumulation of user,in the face of large-scale,rapid growth data,users often find it difficult to effectively access their interest information.Therefore,this thesis studies the design and implementation of an online forum system for university.Except for providing convenient posting,commenting,upload and download functions,we also design information retrieval and recommendation to improve the efficiency of interested information access.In the demand analysis stage,this thesis analyzes and describes the system requirements from both functional and nonfunctional aspects to define the scope of risk management,model system function,and give quality and restraint.In functional demand analysis,we use UML technology to model the business of tax department performance management,including performance plan,process management,evaluation and analysis of performance.Non-functional requirements analysis consists of 3 parts: system performance,reliability and security.In addition,the paper also gives the data modeling in the modeling process based on relational database paradigm third constraints on the modeling process,effectively avoid the redundant information in the database and data update data inconsistency,E-R graph model of the system is given.In the stage of design and implementation,firstly,the architecture design of the system is given,the performance management system for the tax department by B/S framework;in the process of system development,using MVC development framework,the system interface,business logic and data layer;demand analysis further presents the function of the system based on component.Secondly,on the basis of the E-R graph model,the relational model of database and the design of information table are described.Based on E-R graph model further describes the design model and information table of the database,in the database design and implementation using My SQL as the database system.In the stage of system design and implementation,the risk management system for the tax department by B/S framework under the framework of B/S network deployment system are given.In the specific function design and implementation,the project uses Visual Studio as an integrated development platform,the use of ASP.NET technology in the development of MVC framework.In the design and implementation stage,the system is divided into 4 modules: system management,basic services,information retrieval and information recommendation.For the information retrieval module,the full-text index is created by Lucene and give a sorted results based on TFIDF for keyword search.The information recommendation module is designed based on contend method through interest graph.Finally,this thesis gives the system test,including two aspects of functional testing and performance testing to verify the integrity and correctness of the system function and ensure the stability of the system performance.Functional testing based on the black box test method,respectively,the main function of the system were tested,verify whether the function to meet the expected requirements.In the performance testing process,the simulation software is used to carry out stress tests,and the system response time,failure frequency,memory occupation rate,CPU occupancy rate and other indicators are calculated respectively.The test results show that the design and implementation of university student management information system can meet the college student management business needs,to achieve the student to graduate from school,from life to the full range of information management study,to improve the efficiency and quality of teaching.