This Agriculture Chen ERD 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). The Chen ERD diagram is required for the database's visual representation. The ER diagram is easy to create and comprehend. It also provides insight into database design and creates a mental database model. This assists the designer in understanding and visualizing all database concepts, such as data types, relationships, and data flow in the database.