A model which allow designers to use a graphical tool to examine structures rather than describe them by using text is called entity relationship.
What is an entity relationship?
An entity relationship can be defined as a data model with the highest level of abstraction and it is designed and develop to avail designers an ability to use a graphical tool to examine structures rather than describe them by using text.
This ultimately implies that, an entity relationship can be used to label the various relationship types based on connectivity, especially through the use of a graphical tool to examine structures rather than describe them with text.
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