Az Erdе‘rе‘l Link

: Defines the numerical relationship between entities, such as one-to-one , one-to-many , or many-to-many . Why ERDs are Useful

: They serve as high-level documentation of a system’s information architecture. Levels of Abstraction AZ erdЕ‘rЕ‘l

: They provide a common visual language for stakeholders, business analysts, and engineers to discuss data requirements. : Defines the numerical relationship between entities, such