An entity relationship (ER) diagram is a visual way to show how information is organized in a database. It lets people see the main entities, the information stored about them and the relationships ...

ERDs provide a visual starting point for database design that can also be used to help determine information system requirements throughout an organization. After a relational database is rolled out, ...

There is a diagram with circles and arrows in the middle of a proposal, and when I ask the person who made it what they want ...