The Design And Implementation Of Teaching And Examination System Based On Computers' Application

With the advent of the information age, the modern society need lots of informationresources to use quickly and efficiently, and the updating spread period of knowledge willmore and more shorter, so we desperately need to establish a teaching system of computerapplication, fully play the advantages of education resources, maximally realize the sharingof resources, create the ideal teaching environment, make up traditional teaching ofcomputer application, improve education quality, and cultivate innovative spirit andpractice ability adapting to the information age requirement of creative talents.The paper's research contents and achievements are mainly embodied in the followingaspects:Firstly, the paper has cleared the importance of the computer application teaching andexamination system, and summarized the object-oriented methodologies and system'sstructure mode, and discussed the key technologies of the computer basic teaching andexamination system, including: the asp.net technology, XML and SQL language, etc.Secondly, the paper has cleared the the design principle of the system, studied theanalysis of system, the system structure, main function module and the design of the systemand database.In addition, the paper has realized some key functions of the computer applicationbasis teaching and examination system different from other systems based on the.net andSQL Server environment. The paper has researched its safety. Finally, the paper has studiedthe effectiveness of teaching and examination system by test .This paper has applied the combining structure of computer single and double dataservers system to the teaching and examination system's hardware platform structure.System has six main function modules: user management module, the teaching module,resource management module, the collaborative learning modules, the simulation testsystem and management module.Among them, the simulated test module is an important link of system. It will providethe ability of simulation test environment and identification papers for students. Studentscan detect oneself master degree of the knowledge through this system, and give yourself aprecise positioning. Teachers can use the system to test and detect the tasks of teaching, judge whether are achieved of the teaching objectives. The realization of the system, theprocess of conflict is the key. This paper has provided reliable and orderly, two-way datatransmission with TCP connection mode, and provied the transmission channels betweenthe client and server for the system.In addition, the security of the system is an important guarantee of the stable operationof the system. The paper has realized by the encryption and digital signature verification.When receiving the encrypted data, the session keys and files will be decrypted. Firstly, thesystem will read the document information and use self-certified public key signaturebriefly to get the hash value. The CryptHashMessage function can directly get hash valuefrom the head part of the file access encrypted file. Secondly, the system will comparewhether the hash is consistent. If that both parts are consistent-agree shows that theencrypted files are complete, the files did not appear in the transmission of destruction.In short, the Computer application system base on teaching and examination caneffectively break through the traditional classroom teaching method, using the Internet andmulti-media teaching, also make examination process convenient, efficient, quick andjustice.