Download Design Entity Relationship Model Database Example Download Zip Pics. For example, an employee may act as a supervisor for one or more employees, while an employee may. It is well suited to data modelling for use with databases because it is fairly here is an example of how these two concepts might be combined in an er data model:
Here are the requirements for our example database:
Keep track of students' transcripts. In the following er diagram we have two entities student. An entity is represented as rectangle in an er diagram. Er modeling isn't new?it was first proposed by chen in 1976?but it has emerged as the dominant modeling technique only in the past 15 years.