Nov 17, 2025 · The Entity-Relationship Model (ER Model) is a conceptual model for designing a databases. This model represents the logical structure of a database, including entities, their …

An entity–relationship model (or ER model) describes interrelated things of interest in a specific domain of knowledge. A basic ER model is composed of entity types (which classify the things …

Weak Entity Sets Occasionally, entities of an entity set need “help” to identify them uniquely. Entity set E is said to be weak if in order to identify entities of E uniquely, we need to follow …

Oct 14, 2025 · An entity relationship diagram (ERD), also known as an entity relationship model, is a graphical representation that depicts relationships among people, objects, places, …

Aug 14, 2025 · What is ER Model? ER Model stands for Entity Relationship Model is a high-level conceptual data model diagram. ER model helps to systematically analyze data requirements …

So the ER (Entity Relationship) Model was designed and developed and is represented by an ER diagram. In this chapter, you will learn about the ER diagram and its working.

Attribution This chapter of Database Design (including images, except as otherwisse noted) is a derivative copy of Data Modeling Using Entity-Relationship Model by Nguyen Kim Anh …

7 Entity Relationship Modeling Ron McFadyen When designing a database, it is common practice for a database designer to develop an Entity Relationship model and to represent that model …

Chapter 8 The Entity Relationship Data Model Adrienne Watt The entity relationship (ER) data model has existed for over 35 years. It is well suited to data modelling for use with databases …

The entity relationship model (ERM) is a conceptual model that represents the information structure of a problem domain in terms of entities and relationships. The result of modeling …