Ice-cream store entity-relationship (ER) diagram shows several entities, like Manager, Staff, Customer, Owner, and Ice-Cream Parlor. These entities have several attributes, such as an address, name, phone_number, staff_id, manager_phone_number, employee_name, employee_ID, etc. As illustrated in the ice-cream store ER diagram, the most significant advantage of using ERD is its visual representation of the layout. Identifying the flow of data and the operation of the entire system is made easier by having a well-designed database. Use EdrawMax Online to create entity-relationship diagrams for your ice-cream store. Later, you can export the ERD into multiple formats, like PNG, JPEG, JPG, PDF, and more.