Introduction to the Entity-Relationship (ER) Data Model
The Entity-Relationship Data Model, commonly referred to as ER, is a conceptual data model used to organize and analyze data. Unlike other models, ER is not tied to any specific implementation, leaving that task to the logical data model. The ER Data Model provides a high-level view of data organization, allowing you to focus solely on your data and its organization. By utilizing ER diagrams, you can visually represent all the data you need to model, including the relationships between different types of data and the associated information....