Find out what symbols are used in the Entity-Relationship Diagram (ERD) and what they mean. The most popular notation in ER diagrams is the Information Engineering (IE) notation, also called crow’s foot notation. This is the default ER diagram notation used in Vertabelo. There are a few standard symbols used in logical and physical ER diagrams, and some useful additional non-standard symbols that you can use in Vertabelo. We’ll discuss them in this article.
Get to know what an ER Diagram is through use cases and examples. Explore the notations for the essential components of an ERD. Entity-relationship diagrams (ERDs) are used to visualize data and relationships among the entities of a system. At its core, an ER Diagram explains the logical structure and the flow of information within a data model. To do so, an entity-relationship diagram highlights entities, attributes, and relationships through predefined symbols for effective visualization of the architecture.