Entity-Relationship (ER) Diagram is a diagram that displays the relationship of entity sets stored in a database. As shown in the College ER Diagram, the entity-relationship diagrams help to explain the logical structure of a college that includes teachers, students, and schools. The attached diagram is created using EdrawMax and it contains different symbols that use rectangles to represent entities, ovals to define attributes, and diamond shapes to represent relationships. As represented in the diagram, a college ER diagram is a blended learning approach of the college system that combines different attributes of the teacher like name, gender, age, title, salary, and etc. At the same time, the school has different attributes like name, number, location, and leader.