Er Model Diagram. Er diagram is a pictorial representation of data that describes how data is communicated and related to each other. Entities are represented by means of rectangles.
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Any object for example entities attributes of an entity relationship sets and attributes of relationship sets can be represented with the help of an er diagram. Any object such as entities attributes of an entity sets of relationship and other attributes of relationship can be characterized with the help of the er diagram. Er diagram is a pictorial representation of data that describes how data is communicated and related to each other.
An entity attribute relationship diagram for a mmorpg using chen s notation.
In other words er diagrams help to explain the logical structure of databases. Er diagrams are most often used to design or debug relational databases in the fields of software engineering business information systems education and research. They are represented using the rectangle shaped box. Any object for example entities attributes of an entity relationship sets and attributes of relationship sets can be represented with the help of an er diagram.
