This Chen ERD for Tiny College is a popular standard widely used in database and software design worldwide. Dr. Chen's entity-relationship model is built on a genuine understanding of how the real world is made up of entities and the relationships that exist between these identified entities. It was created to take advantage of the benefits of the three entity-data models (network model, relationship model, and entity model). Chen's ERD notation is still in use and is thought to represent entities and relationships more precisely. To create an ERD, software engineers primarily use specialized drawing software that includes all the notation resources for their specific database design - ERD symbols and meanings.
