Map the object classes created in Online Learning System above into database tables. Make necessary assumptions

In an Online Learning System, the various components such as courses, users, instructors, assignments, and other entities can be modeled as object classes in an Object-Oriented Analysis and Design (OOAD) approach. These object classes can then be mapped into corresponding database tables, keeping in mind the relationships between these entities, and ensuring that the data is stored efficiently for retrieval and modification. Below is an analysis of how the object classes from the Online Learning System can be mapped into database tables, along with necessary assumptions.

### 1. User Class to Users Table

The User class typically represents the individuals who interact with the system. This can be further divided into different types of users, such as students, instructors, and administrators. 

- Attributes of User Class: 
  - `user_id` (Primary Key): Unique identifier for the user.
  - `username`: User’s chosen name for login.
  - `email`: User’s email address.
  - `password`: Encrypted password for authentication.
  - `role`: The type of user (e.g., Student, Instructor, Admin).
  - `first_name`, ___ _____ _________ ______ ________ _____ ____ ________ ___ _______ _______ _________.
_________ ____ __________ ________ _______ ____ ___ ___.
______ _________ __________ ____ ____.
______ _______ ________ ______ __________ ________ ____ ___ _____ _______ ____.
_________ _________ ___ ______ _________.
____ ___ __________ _____ __________ ________ _________ ____ ___ _______.
____ _________ _______ ___ ___ _______ __________ _________.
____ _____ __________ ______ _______ _____ ________ _________ ________.
_______ ___ __________ ___ __________ _______ ___ ________ _____ _____ ___ _____.
__________ _________ _______ _______ ______ ___ ________ ___ _________ _____.
___ ________ ____ ________ ________.
______ _____ _____ _________ _____ ___ ____ ___ ________ _______.
____ ________ _____ _________ _______ ___ _______ ____ _____.
_____ ____ __________ ___ ____ ___.
___ ______ ___ ____ __________ _______ __________ __________.
_________ __________ ________ __________ ____ ___.
________ __________ _________ __________ ________ ______ ______.
_________ ______ ________ ______ _________ _________ _____.
_____ _______ _______ _____ _____ _____ ______ ____ __________ ____ _____.
______ _______ ________ ____ ______ _____.
_______ _______ _____ ____ ______ __________.
_____ _____ _____ _______ _________ ________ ____ _________ __________ ___ ____.
____ ___ _________ ________ ______ ____ ________ ______.
_____ ________ ____ ___ ________ ____.
________ ____ _______ ________ ______ __________ ________ _______.
________ _________ _____ __________ ___ ___ _______ _________ __________ ___ ___ ___.
________ __________ _____ ______ ___ ____ ______ ______ _______ ______ _______.
__________ _______ ___ ____ __________ _________.
________ _________ __________ ___ ____ _____ _____ ____ ________ ________ _____ _______.
________ __________ _____ _____ ____ _____ ______ ________ __________ ___ __________ ______.
_________ _______ ________ ____ _________ __________ ________ _________.
______ _________ ___ ___ ___ _______ ____ ___ _______ __________.
_______ ________ _________ ____ ______ ______ _____ _________.
__________ _____ _________ ________ ______ __________.
_________ _______ _____ __________ __________ _____ ____ ___ _________ ______.
_______ _________ __________ __________ _____ _____ ________ __________.
__________ _____ ___ _________ __________.
________ ______ _____ _____ __________ _______.
________ ___ ____ ____ ____ ________ ________ ___ ____.
_______ _______ _________ __________ ___ ______ _______ _______.
__________ _____ _______ __________ _____ ______ ______ ________ ______ __________ ________ ______.
__________ ______ _________ __________ __________ _______ ___.
________ ____ ______ ________ ___ __________ _______ ____.
________ _______ _________ _______ ________.
________ _________ _________ _________ _________ _______ ______ ________ _____.
________ ____ _______ ______ _______ ______ _____.
________ ________ ______ _________ _________ _______ _____ _________ ________ ________ _____.
____ ________ __________ ________ ________ __________ ____ _____ __________.
____ _________ ______ _______ ______ ________ _________ ______.
_________ ________ __________ ________ _____ _____ __________ __________.
_________ _________ ________ ____ _________ ______.
_________ ___ ____ __________ _______.
_______ _________ _____ ____ ____ _____ ___ __________ __________ __________ _______ ____.
_______ __________ ______ ____ ____ ______ ________ ______ _________ _____ ______ ___.
__________ ______ ___ ______ _______ ______ ____ ______.
__________ __________ _______ ____ ______.
______ _______ ________ ____ ____.
_____ _______ _________ __________ ___ _________ ________ ______ ___ _________.
_______ ________ ____ ___ ___ ________ _________ _____ ________ _________.
__________ ____ _________ ____ _______ ___ __________ __________ _____ _____ __________.
___ ____ ______ _______ ___ __________ ______ ____ ______ _____ ________ ___.
_______ _______ _____ _____ ______ ___ ______ _____.
___ ____ __________ _________ ______ ___ _________ ___ ____.
______ _______ ___ _______ ________ _____ ___ _______ _____.
________ _________ ________ _______ _______ ____ _______ _________.
____ ______ __________ ________ _________ _______ __________ ____ _________.
____ ____ ____ _______ _______ __________ ____ _______ _______ ______ ___.
______ ________ ____ ____ ___ __________ _______ _________.
______ ___ __________ ________ ____ ______.
_____ _________ _____ ______ ___ ______ ________ ________ ______ ________ _________ ______.
_______ ________ _____ __________ __________ ____ _____ _______ ____ ________ ____ ___.
________ ________ ______ ___ _________ ___ ______ _____ _______ _________.
_____ ________ _____ ____ _________ __________.
____ ____ ________ _________ _______ ______ ________ ____.
_________ _________ ___ ________ ________ _______ ____ ________ _______ ___ _________ _____.
___ ______ ________ ________ __________ ________ __________.
_____ ________ _____ ___ ________.
________ _________ ________ ________ _____ _______ ___ ________ __________ _________ ________.
________ ____ _______ ______ _________ ______ ______.
___ _____ ____ ____ ___.
____ _____ __________ _________ _______ ___ ______ ______ ___ ______.
_____ _________ _______ ___ _______.
_____ __________ _____ ________ ___ _________ _____ _______ _______ _____ ____.
____ ______ __________ ___ __________ __________ ____ _____ _______ __________ ______ ______.
_________ ______ _________ ____ ___ ______.
________ __________ __________ _____ _______ __________ ______ ________.
_________ _____ _______ ______ ____.
__________ _____ _______ ____ ____ __________ ___ _______ _________.
___ ______ ____ ____ _____ __________ ______ ___.
__________ _____ ______ ___ ________ ___ ________ ________ __________ __________ _____.
__________ ___ ________ ________ ___ _________.
_______ __________ __________ _______ _____ __________.
___ __________ ________ ___ _____ ___.
________ ______ _________ _________ ___.
____ ___ _________ ___ _____ ____ ___.
_________ _____ ___ ______ _________ _________ _____ _____ ______ ______.
___ _______ ___ _______ _____ ____ ______ ______ ______ ___ _________ _________.
__________ ______ ___ ______ _____ ____ ________.
____ _______ _________ _____ _______ ______ ________ ___ ____ _____.
_______ ______ ____ __________ _______ _______ ________.
__________ _________ ______ ____ ________ __________.
_____ _______ ____ _______ ______ _____ ___ ___ ___ __________ ____ _____.
________ ____ ____ ____ ____ ________ ___ ______ ____ ____.
_______ ____ ________ _______ _____ ____ ______ __________ _______ _________.
____ ______ ______ ____ _____ _____ _______.
________.
Get Full Answer on WhatsApp