Definitions for "Entity relationship diagram"
Keywords:  erd, diagram, depicts, ldm, ooa
a diagram used for data modeling and design that depicts a set of real-world entities and the logical relationships between them.
Refer to ERD. Entity. Represent a data store, which has its unique key attribute and its other non-key attributes. Auxiliary Definition. This is a data type that doesn't correspond to any attribute, component of an ERD, or part of a data flow diagram itself, but can be used to define these other things more easily.
A technical specification and road map that describes what types of data that the firm must collect and how to join relational database tables (two or more types of data) to create high level business intelligence.