The class diagram of LessonPlan 2.0 social network illustrate the structure of this application by illustrating the classes and their attributes and operations.

LessonPlan 2.0 project consists of multiple classes in which some of them depend on others. The main class User is a generalization for both students and lecturer/module leaders. Both of them (student class and lecturer class) have something in common which is represented in User class. The other attributes and operations that distinguish student from lecturer are set in student class, same for lecturer.

The dependencies between classes are represented with doted arrows. Each class represent class name, number of attributes which set to be private by assigning – sign before them, and public constructors and operations with plus + sign before them.