Samples for Mac
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Entity Relationship Diagrams
A number of data modeling techniques are being used today. One of the most common is the entity relationship diagram (ERD). ERD is a data modeling technique that graphically illustrates the entities of an information system and the relationships between entities.
Sample 1: Crow’s Foot Entity Relationship Diagram
Crow’s Foot is the most commonly used ERD notation. It’s good for a clean look when there are many attributes, such as a model of a complex database system.
Sample 2: Entity Relationship Diagram Using Chen's Notation
This sample ER diagram is build using Chen's original notation. In this ERD, entities are represented by a box and relationship types are symbolized by a diamond. The ER diagram is created using the Entity Relationship Diagrams solution that can be found in Software Development section of the ConceptDraw Solution Park.
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