Multiple Choice Quiz System ER Diagram

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July 17 2017

Posted By: freeproject
Comments: 0

Posted By freeproject on July 17, 2017

This ER (Entity Relationship) Diagram represents the model of Multiple Choice Quiz System Entity. The entity-relationship diagram of Multiple Choice Quiz System shows all the visual instrument of database tables and the relations between Examinations, Courses, Students, Results etc. It used structure data and to define the relationships between structured data groups of Multiple Choice Quiz System functionalities. The main entities of the Multiple Choice Quiz System are Students, Examinations, Marks, Courses, Papers and Results.

Multiple Choice Quiz System entities and their attributes :

Students Entity : Attributes of Students are student_id, student_college_id, student_name, student_mobile, student_email, student_username, student_password, student_address
Examinations Entity : Attributes of Examinations are exam_id, exam_student_id, exam_roll_number, exam_date exam_name, exam_type, exam_description
Marks Entity : Attributes of Marks are mark_id, mark_student_id, mark_exam_id, mark_result, mark_number, mark_type, mark_description
Courses Entity : Attributes of Courses are course_id, course_student_id, course_registration, course_name, course_type, course_year, course_description
Papers Entity : Attributes of Papers are paper_id, paper_exam_id, paper_subject, paper_time paper_name, paper_type, paper_description
Results Entity : Attributes of Results are result_id, result_student_id, result_date, result_type, result_description

Description of Multiple Choice Quiz System Database :

The details of Students is store into the Students tables respective with all tables
Each entity (Results, Marks, Papers, Examinations, Students) contains primary key and unique keys.
The entity Marks, Papers has binded with Students, Examinations entities with foreign key
There is one-to-one and one-to-many relationships available between Papers, Courses, Results, Students
All the entities Students, Papers, Marks, Results are normalized and reduce duplicacy of records
We have implemented indexing on each tables of Multiple Choice Quiz System tables for fast query execution.

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