Modelling Business Information: Entity Relation... -

Introduces specific attributes, primary keys, and foreign keys, mapping out operational data rules without being database-specific.

Modelling Business Information using Entity-Relationship (ER) diagrams is a foundational technique for defining the structure, relationships, and rules of data within an organization . It acts as a bridge between business requirements and technical database design, enabling stakeholders to visualize the "things" (entities) a business cares about and how they interact. Core Components of ER Modelling

Countable objects, concepts, or events, such as Customer , Product , or Order .

Defines the high-level business scope and key concepts, focusing on business vocabulary rather than technical detail.

Specific properties describing an entity, such as Customer Name or Product Price .

Provides enough detail for database developers to build the actual system, including technical data types. Benefits of Entity-Relationship Modeling What is an Entity Relationship Diagram (ERD)? - Lucidchart