Staff, sessions, guardians, departments, users, centers, guardians, students, and other entities can be found in this University ER diagram. There are attributes such as guardian id, guardian name, guardian phone home, department name, student id, user id, guardian id, user login, user password, staff status, staff phone office, staff first name, staff last name, and others, as shown in the University ER diagram below. The entity-relationship model of the university system is a graphical approach to database design. At first glance, an ER diagram appears like a flowchart. However, the ER Diagram includes many specialized symbols, and their meanings distinguish this model. The ER Diagram's purpose is to represent the entity framework infrastructure.