Design And Implementation Of Online Examination System Based On The Caching Mechanism

Since the 21st century,the application of online examination system in the last century the popularity of computer network technology beginning stages there will be a number of applications,and traditional test methods will waste a lot of resources,some of the existing online examination system is often limited to a small number of single subject or subjects testing,targeted narrow,single exam,unable to meet the needs of a variety of exams.In view of this situation,this paper Apache as the Web server to MySQL as the database server,using PHP technology based on B/S structure of online examination system,the system implements user management,course management,exam management,paper management,performance management,class management,bulletin management and system management functions,user-friendly,simple to use.After system testing to verify the availability of the system functions,the main research work is reflected in:(1)A full consideration of the actual situation of the premise,respectively,and the proposed terms of system requirements,feasibility aspects,functional requirements and non-functional aspects of demand analysis,a professional description language to describe and identify system real needs.(2)A prototype system online consideration were implemented.Baesed on PHP technology,Ajax technology,Mysql database,using MVC model to achieve a B/S structure of online examination system,given the function of the system to achieve results show,in the realization of the line installation and deployment.(3)A test plan and design test cases for a functional test of the system were developed,and tested from the system functions,user interface,performance,security,compatibility and so on.The test results verify the availability and usefulness of the system.The innovation of the system is that the designing the static caching mechanisms and data preprocessing mechanism,greatly improved the access performance of the system,increased the stability of the system,to enhance the user experience when using the system.