14+ Design Data Modeling Using Entity Relationship Model Example Download Zip Images. Chapter 3 data modeling using the entityrelationship (er) model copyright © 2007 ramez elmasri and shamkant b. It is well suited to data modelling for use with databases because it is fairly abstract and is easy to discuss and explain.
Entity relationship model (er modeling) is a graphical approach to database design.
How does the database designer decide what to model as an entity type and what to model as a relationship type. An entity is a thing or object in real world that is. The data requirements are analyzed and modeled using an er or uml diagram that includes, for example, semantics for. · a drawing that is used to represent a data model.