ERD stands for entity relationship diagram. People also call these types of diagrams ER diagrams and Entity Relationship Models. An ERD visualizes the relationships between entities like people, things, or concepts in a database.

An entity-relationship diagram, or ER diagram, models the logical relationships between entities and thereby can help engineers troubleshoot issues or discover inefficiencies in existing database designs.

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Most UML diagrams involve connecting one or more shapes to each other using lines and special arrowheads to indicate relationships like aggregation, dependency, inheritence, composition, and association for classes and interface type for components.

Internet Sales Entity Relationship Diagram. You can make ER diagrams like this one for your database. Customize this example by clicking to edit it or make your own from scratch.

SmartDraw can generate an ERD from data and the resulting diagram is fully editable. You can move, delete and add components as needed. Brainstorm potential issues or design a new database structure together.

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Defining Connections and Relationships with Arrowheads. Most UML diagrams involve connecting one or more shapes to each other using lines and using special symbols on these lines to indicate relationships.

Create Entity Relationship Diagram examples like this template called Internet Sales Entity Relationship Diagram that you can easily edit and customize in minutes