SRS (Online Learning Management System) | Designing ER Diagram

Entities:

1. User:
   • Represents individuals interacting with the system.
   • Attributes include user_id (unique identifier), username, email, password, and role (e.g., student, instructor, administrator).
2. Course:
   • Represents academic courses offered within the system.
   • Attributes include course_id (unique identifier), course_name, and description.
3. Assignment:
   • Represents tasks or assessments assigned to students within a course.
   • Attributes include assignment_id (unique identifier), title, description, due_date, and course_id (foreign key referencing Course entity).
4. Grade:
   • Represents grades or scores assigned to students for completing assignments.
   • Attributes include grade_id (unique identifier), score, and references to assignment_id (foreign key referencing Assignment entity) and student_id.
5. Enrollment:
   • Represents the enrollment of users (students) in courses.
   • Attributes include enrollment_id (unique identifier), and references to user_id and course_id (foreign keys referencing User and Course entities, respectively).

Relationships:

• User-Enrollment: Many users can be enrolled in multiple courses, and each enrollment is associated with one user and one course.
• Course-Enrollment: Many courses can have multiple enrollments, indicating the participation of multiple users (students) in a course.
• Course-Assignment: Each course can have multiple assignments, facilitating the management of course assessments and tasks.
• Assignment-Grade: Each assignment can have multiple grades, representing the grading of the assignment submissions by different students.

Overall, this ER diagram depicts the relationships between users, courses, assignments, grades, and enrollments within the Online Learning Management System, providing a structured representation of the system’s data model.

A crucial tool for both teachers and students in the current digital age is the Online Learning Management System (LMS). The centralised platform our system provides for online course delivery, content management, and progress monitoring transforms the way we teach and learn. Enabling instructors to design captivating learning experiences while giving students flexibility and accessibility is made possible by the LMS’s interactive capabilities and user-friendly interface. To improve the online learning experience, we shall examine the process of creating a System Requirements Specification (SRS) for an LMS.