Following is an ER diagram for an inventory management system. The various entities and attributes involved in the operation of the inventory management system are described with the aid of the ER diagram below. The various entities involved include the customer, product, order, supplier, warehouse, employee, and stock tracker system.Here an entity is represented using a rectangular box, with the name of the entity listed inside it. The attributes associated with each of the entity are represented using oval shapes joined with their respective entities. The relationship among the entities is represented diamond-like shape.
