A company assets entity-relationship (ER) diagram shows the asset types, IT assets, IT assets inventory, Employee Assets, and Employees details like Employee_id, first_name, last_name, department, extension, email_address, and other_details. It should be noted here that the company assets are likely to be listed on a company's balance sheet, including cash, temporary investments, accounts receivable, inventory, prepaid expenses, long-term investments, land, buildings, machines, and more. It should be noted here that ERD is a diagram that displays the relationship of entity sets stored in a database. ER diagrams contain different symbols that use rectangles to represent entities, ovals to define attributes, and diamond shapes representing relationships. The purpose of the ER diagram is to describe the entity framework infrastructure.