Class Diagram for LinkedIn

In this lesson, we’ll identify and design the classes, abstract classes, and interfaces based on the requirements we have previously gathered from the interviewer in our LinkedIn system.

Components of LinkedIn

As mentioned earlier, we will design the LinkedIn system using a bottom-up approach.

Account

The Account class identifies a LinkedIn user through their username and ID. Users with an account will have the option to create groups, pages, posts, comments, and like other comments and posts.

The class definition is represented below:

Education, experience, and skill

The Education, Experience, and Skill classes provide relevant information and make up the Profile class.

These classes are represented below:

Recommendation, achievement, and analytics

The Recommendation, Achievement, and Analytics classes are used to provide relevant information and make up the Profile class.

These classes are represented below:

Profile

The Profile class contains the personal information of a LinkedIn user—their profile, cover photo, experiences, education details, skills, and achievements.

The visual representation of the Profile class is given below:

Company page, job, and group

The CompanyPage class represents a particular page for a company that exists on LinkedIn. It contains the name, description, company ...