Design And Implementation Of Marking Paper Online System Based On Cloud Platform

As an increasingly mature technology,online marking has been widely used in the evaluation of various types of educational examinations.Looking at the existing online marking system,it is only conducted between one school or a few schools.The "information exchange" is often ineffective when confronted with regional and even more extensive examination data for comparative analysis and scoring tasks.It has become a trend to transform the traditional online marking system software development into the main software service architecture to the cloud platform.This not only provides each school with an "on-demand" usage method,but also greatly reduces the online marking service.The use of cost also solves the problem of "information isolated islands" between schools and schools,so that they can compare with other schools while learning the status of students' exams in the school,so as to find their own deficiencies and thus can conduct education and teaching methods.Optimize reforms to achieve better teaching results.In order to meet new requirements,a cloud-based online marking system is in urgent need of development and use.Cloud terminals using virtualization technology,the unified archiving information stored in the core storage device,this time there will be unauthorized use of test paper information security risks,how to improve the safety of test paper information becomes one of the work of the marking system,for this One problem,based on the cloud-based marking system architecture,this paper researches the encryption and decryption technologies of the test paper,and compares the mainstream digital image encryption algorithms.After deeply researching the Chaos image scrambling algorithm based on Logistic,a new chaotic image encryption algorithm is proposed,which greatly improves the performance of chaotic system output sequences,making it more suitable for the system;In the process of implementation,how to ensure the continuous stability of the scores of the teacher to ensure that the reliability of the candidate's performance is often a problem that confuses the scoring system.This article not only proposes a review method for one review,two reviews,and three reviews,but also based on the spectrum.The method of clustering marking quality monitoring is applied to the system.Through the regular detection of the scorer's work,the score is clustered,and a stable judgment is then made and the result is returned to the system's quality inspector.The entire marking process is under control so as to increase the credibility of the final grade to a certain extent,and give the examination personnel an objective evaluation result.Finally,the above key technologies were applied to the development and implementation of the system,which were applied to the actual test and achieved good results.