The Design And Implementation Of The Computer-based Examination System For Colleges And Universities Based On UML Technology

With the wide application of computer and the rapid development of network,the disadvantages brought by written examination method are more and more prominent,such as large cost,high error rate,long time,low efficiency,therefore,the implementation of computer examination system is extremely urgent.Computer-based system can not only realize the teaching and examination separated,also can make the teaching resources are Shared in a larger scope,moreover also can make the arrangement of the teaching work and teaching effect evaluation more scientific and reasonable,computer-based system based on computer and network resources,promote the teaching efficiency and quality improvement.This paper makes a detailed analysis of the business requirements of the computer test system of Henan vocational college of surveying and mapping,gives the overall and functional architecture of the system,and uses unified modeling language to model and analyze the system,and gives the use case diagram,sequence diagram and class diagram of database design of corresponding functional modules.On this basis,with C#language as the foreground tool and SQL Server 2000 as the background database,the system structure of C/S model is adopted to realize ’the computer test system of Henan surveying and mapping vocational college,and the corresponding system test is conducted.The system USES C/S architecture to complete the invigilator console,examination machine client design.Invigilator console completes the invigilator teacher login invigilator classroom console,control the test machine,monitor the test process,obtain test results and report to the test center function;The examination machine client completes the student login,obtains the examination paper,the examination paper and submits the examination paper function.At the same time at both ends to provide access control,log storage and other basic functions of the system.By testing the function and performance of the system,it can be proved that the system has certain accuracy and availability.For invigilators and examinees,it can reduce the time cost and improve the work efficiency while a large number of examinees take the exam.