Research And Design Of A Network Teaching Platform

With the knowledge economy arriving, the humanity gradually entered the information society. Because of the computer technology development, it is changing the traditional education pattern, especially the network technology development, which enables the people to access the net through different ways to study new knowledge. At the same time, this change has also affected the teaching test way, namely realized as the on-line teaching test. The on-line test functions on compositing the test paper, answering the questions on the test paper and grading completes by the computer completely. Breaking through spatial and time boundary, test content and score are not in the control. It enhances the test fairness and the scientific effectively, which makes sure test management more standardized and scientific, carries on the inquiry to the test results on the real-time, carries on the maintenance to the test questions in distance, lightens the work load greatly and enhances the working efficiency.The network teaching platform has the merit of reducing the teaching test cost, solving the arduous educational administration and testing up the service work. The on-line test system massively exempts the teacher from monitoring the exam work. The examination paper may produce according to the questions in the database immediately and automatically. The teacher also does not need to examine test papers, the statistics, and the analysis work after testing. Instead, the computer automatically grades test papers and delivers scores to the database to carry on statistics directly. The test does not have the paper enhanced the working greatly, at the same time, the paper is turned into at random, which may prevent leaking secrets of the test papers and cheat. This enables to guarantee the test fairness and the answer security effectively, based on the Web-technology. The test systems get help from the internet. And it may carry on in local and different areas, which greatly has developed the test flexibility.The network teaching platform is the teaching systems which use three structures and base on the B/S pattern. Namely use three distributed structures: the browser-Web server-database server is to improve the traditional C/S structure test system. In the B/S structure test system, the customer only needs to install the browser, and does not need to install the test application procedure to reduce the burden of service management. The goal of constructing the network teaching platform is to enhance the teaching management efficiency and the resources sharing degree. Its main function includes: assists the teacher to organize the examination paper, permits the student to test on-line and to inquire the resulting, provides long-distance management, and the student information. Resulting management maintenance and studying on-line are for the administrator based on the Web pattern. This system uses the B/S structural model, gets rid of the C/S model's dependence on the customer end. Using three structural designs which strengthen the reuse and probability of the system will be advantageous for maintenance and the expansion in the future.This system is making up with the subsystem of test question management, the subsystem of test on-line and the subsystem of study on-line. The main research is on the management of test questions, the management of test papers, on-line test, the management of scores, the management of basic information, on-line study and so on. There are four main methods to test the questions which are the judgment topics, the list selected topics, the multi-selected topics, and the filling up the topics, which has manager and student authorizations.The test question management subsystem is the application platform of carrying on the batch input, the maintenance, the management of the question database resources. In order to provide the powerful question-test management function for the administrator, it mainly includes the judgment topics management, the list selected topics management, the multi-selected topics management and the filling up the topics management. The main operation includes the increase, the edition, the deletion, the search, and demonstration of the page in divide.The examination paper management subsystem is the application platform of the examination paper resources maintenance and management. It mainly includes: (1) Test Question Management: the number of the judging topics, the list selected topics, the multi-selected topics and the filling up topics, the score control in the examination paper (2) Test Time: setting up the test time; taking the minute as a unit, 120 minutes in default (3) Period Management: establishing exams period, increasing the new time of test, and demonstrating the examination paper information each timeThe on-line test subsystem realizes student's entire test process on-line, mainly includes: (1) Examinee Registration: the registration examinee who has not registered registers the individual real information (2) Examinee Loges on : the system accepts individual status information which the examinee inputs through the confirmation, the permission legitimates examinee to enter the test system (3) Rule of Test: the announcement of test disciplines, the attention of the examinees answers ways and the way of submitting (4) Receives the Examination Paper: examinee's test topics extracts from the question database on random, composites the examination paper (5) Examination Paper Submits: submitting the examination paper on one's own initiative and when the scheduled time reaches, the system forces to submit the examination paper (6) Grades the Test Papers: after the examinee submits the paper, the system automatically grades the test papers, demonstrating the correct answers and the test results to the examinee (7) Result Recording: the result information which the examinee supplements to the student resulted storehouseThe score management subsystem realizes examinee's score to file away, the supervisory work, mainly includes: (1) the score files away: receives examinee's test score (2) the current period's statistics: the number of students attend the exam, the most high score, the most low score, average score, the number of the students in the every segment of the score, analysis the student score, demonstrates by the graph way to refer for the teacher (3) inquires and the printing: the score files away, for inquires and prints the student report card (4) the examinee classifies: according to examinee's various subject scores, carries on the classification to the examinee (5) the make-up test controls: carries on the make-up test to control for the test examinee that has not passedThe information management subsystem is used to manage the student and managers'completing information, which mainly includes: the management of student information, such as student information inquiry, deletion, demonstration registration information; the management of the manager information, such as account and password management.The on-line study subsystem provides the computer basic courses browsing and downloading.In brief, the network teaching platform will be the futurological education system tendency. This system has made some attempts for which has yielded the certain results, also has the certain flaws. From now on this will have unceasingly to consummate, and cause to be mature.