Design of intelligent test paper generation system

The intelligent test paper generation system is able to test the subject knowledge structure 、 Data extension for all-round tracking management ; Provide intelligent test paper generation , Improve the quality of test paper generation ; Various examination forms ;

The organizer can customize the knowledge points of the topic 、 difficulty 、 Teaching requirements 、 Score four indicators ; You can customize the question types in the question bank and test paper .

Demand analysis

1. Test paper generation : Automatically as scheduled 、 Hand roll or batch roll . Generate the set difficulty according to the user's requirements , Given the number of questions and other aspects of the parameters meet the needs of the test paper , After the test paper is generated , The system is required to be able to According to the format of the general test paper, all the test questions will be automatically typeset , And synchronously generate the standard answer of the test paper .

2. Test question maintenance : The system should have a question bank , It has the ability to automatically check the question type and difficulty distribution , Provide query of test questions 、 edit 、 increase 、 Delete and other functions .

3. Test paper query : The examination papers should be archived , The teacher can check the examination paper of the past year through this system .

4. Network printing : Print by order , The printing department can receive the test paper to be printed through the computer .

5. A secret : Before the end of the exam, no one except the teacher who produced the test paper can access the test paper and the answers to the test paper .

6. The operation interface shall be clear 、 Simple and flexible 、 convenient .

7. The system shall have good stability 、 Robustness and scalability .

Intelligent test paper generation realizes logic

When a user makes a request to group a volume , The system first creates a temporary test paper table for the test paper users .

The user will select the topic conditions ( Question type 、 The score is 、 Chapter No 、 Textbook No 、 The difficulty coefficient 、 Discrimination, etc ) Enter the system in sequence .

According to the constraint conditions, the system adopts the corresponding mathematical algorithm to retrieve the qualified test questions from the database and store them in the temporary test paper table ( In order to prevent repetition of test questions , Set a selected field for each question , The initial value is 0,0 This test question can be taken as , When it's finished , The temporary assignment is 1, No longer desirable ),

All the extracted samples There is a radio box at the end of each question , Manually check whether the test questions meet the requirements , If there are individual test questions that do not meet the requirements, manual intervention can be carried out .

After all the questions meet the requirements , The system will automatically read out the test questions and answers in the temporary table , Translates into word Text papers and answers .

Finally, delete the temporary table , And set the selected fields of all test questions to 0.

The system is using mathematical algorithms , When composing a complete test paper , There are four common ways to extract test papers , The corresponding flow chart is as follows ：

Flow chart of directly extracting test paper

Improved flow chart of extracting and generating test paper

Genetic algorithm implementation flow chart

The system design

( One ) User group and permission settings

The system is divided into the following 5 Level authority , The parent permission is inherited from the child permission .

1. System administrator ( Highest authority ). The system administrator is not subject to any constraints in the system , Have the highest authority , Usually, only one system administrator is set for a system , And the administrator should have certain website maintenance experience and data Library operation experience .

2. Administrators (4 Level authority ). The administrator has most of the privileges of the system , You can manage users , Such as the increase of users 、 Delete 、 Modify etc. , But the system cannot be maintained , You can't view the encrypted The examination paper .

3. Teacher users (3 Level authority ). You can access the question bank module 、 Test paper management module 、 Subject management module and textbook management module , However, the system maintenance and user management modules cannot be accessed .

4. Question bank Administrator (2 Level authority ). can To access the question bank module 、 Subject management module and textbook management module .

5. Printing group users (1 Level authority ). Only print the test paper .

( Two ) Design of functional modules

The functional modules of the system are as follows :

System management module : Only system administrators can access , Set the system .

User management module : This module is provided to administrators and system administrators . Through this module, you can query 、 add to 、 Modify or delete users .

Discipline management module : Except that the printing group cannot access , The rest of the user groups can access ask , In this module, you can query 、 add to 、 Modify or delete disciplines .

Textbook management module : Except that the printing group cannot access , The rest of the user groups can access , In this module, the addition and deletion of teaching materials can be realized , also The corresponding teaching materials can be inquired according to the discipline .

Question bank management module : System administrator , Administrators 、 Teachers and question bank administrators can access , This module can be added 、 Delete 、 Modify the title , There is also a list of topics 、 Question type management and question search , Subject query can support subjects 、 Question type 、 The score is 、 The difficulty coefficient 、 Chapter No 、 The teaching material 、 A combined query of keywords such as the number of selections .

Test paper management module : This module provides teachers 、 Administrators 、 System administrator access . In this module, test papers can be generated manually and automatically 、 Look up the examination papers over the years 、 Place an order and print the test paper .

Test paper printing module : This module is only available to members of the printing group and system administrators . When a user submits an examination paper, he must For printing , It will be displayed in the print list .

Paper generation interface design

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Database design ： Question bank

According to the system functional design requirements and module division , The database mainly includes the following five tables , The main fields of each table are as follows :

1. User table : Number 、 user name 、 password 、 Department 、 User category 、 Login times .

2. List of questions : Number 、 Question type 、 Question type description .

3. Title List : Number 、 Topic content 、 answer 、 The difficulty coefficient 、 The score is 、 Chapter section 、 Question type No ( It can be connected with the question table )、 Textbook number ( It can be connected with the textbook table )、 The user id ( Enter the user number of the title , This number can be connected with the number in the user table )、 Degree of differentiation ( Questions for different levels of subjects The degree of differentiation between the two , If the distinction of the topic is high, the high-level subjects will score higher on the topic , And the low-level subjects will score low )、 Add the time 、 Is it selected 、 Selection times .

4. Textbook list : Number 、 teach Material name 、 Number of chapters 、 Press. 、 Year of publication 、 Editor in chief 、 Subject number ( It can be connected with the subject table ).

5. Subject list : Number 、 Subject name .