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Entity Relationship Diagram Examples

Crow’s Foot and Chen's notation examples

Creating the entity-relationship (ER) model by visually representing the structure of some database, mainly the business one, which data equates to its entities (or objects) that are connected by relationships showing requirements and dependencies, you need proper software to provide you with the symbols necessary in this case.

ConceptDraw DIAGRAM мector drawing and diagramming software allows you to make any of needed models, plans, charts, diagrams with help of our application STORE where lots of layouts can be found as well as samples and templates of the flowcharts depending on the business sphere you work in and requirements you have. You can also find examples of ERD in Solutions here on this site in order to make it look really smart. Making entity-relationship diagram based on the Chen ERD notation is simple now having ConceptDraw DIAGRAM and you can check it yourself once you download and use it. Advice your colleagues and your friends, business partners, in order to simplify their lives as well as yours making the charts looking professional and simply sophisticated. Because we guarantee the quality of our great software developed to please everyone who needs this product in their work.

ERD example - Chen diagram

Example 1. ERD Example — Chen Diagram

This sample diagram is one of ER Diagram examples included to Entity-Relationship Diagram (ERD) solution. It shows the type of icons and graphics you can use to develop a model of a database of arbitrary complexity according to Chen's notation.

ERD example - Crows's Foot diagram

Example 2. ERD Example — Crows's Foot diagram

This sample diagram was created using the drawing tools of Entity-Relationship Diagram (ERD) solution and shows the type of icons and graphics you can use to develop a model of a database of arbitrary complexity using Crow's Foot notation.

ERD example - Entity Relationship Model Diagram

Example 3. Entity Relationship Model Diagram — Crows's Foot notation

This sample demonstrates an Entity-relationship model diagram. Highlight the boxes in the ERD diagram with bright colors to make it attractive and easy to remember.

ERD example - Students and Teachers

Example 4. Crows's Foot ERD notation — Students and Teachers

This Entity-Relationship Diagram shows the relationships between the Students and Teachers entities. Drawing all entities of ER-diagram in one color spectrum, highlighting the headers, you will make your diagram look stylish and then successfully use it in different conferences, discussions, publications.

ERD example - WordPress File reference

Example 5. Chen ERD notation — WordPress File reference

This ERD example shows an Entity-Relationship Diagram of a WordPress file reference using Chen’s Notation, which represents the entities as rectangles and attributes as ovals. Creating similar Entity Relationship Diagram examples and diagrams in ConceptDraw DIAGRAM will take just minutes.

Chen ERD Template

Example 6. Chen ERD Template

This template from Entity Relationship Diagram (ERD) solution contains special objects and settings for creating entity relationship diagrams based on the Chen ERD notation.



How to Create an ERD Diagram

The ability to describe a database using the Entity-Relationship model is delivered by the Entity-Relationship Diagram (ERD) solution.

Open ConceptDraw STORE, check the ERD solution and click “Install”.
This solution extends ConceptDraw DIAGRAM with 2 libraries that contains 45 objects advocated by Chen's and Crow’s Foot notations that can be used when describing a database.

ERD symbols - Chen's notation

Pic. 1. ERD symbols - Chen's notation

ERD symbols - Crow's Foot notation

Pic. 2. ERD symbols - Crow's Foot notation

  • From the ConceptDraw STORE open the Chen's ERD, or the Crow's Foot ERD template from the ERD section.
  • Add objects to the diagram by dragging them from the Chen's ERD, or the Crow's Fot ERD library to the document page.
  • Use Clone tool Clone tool for Mac (Mac),Clone tool for Win(Win) to quickly add copies of the selected object.
  • Select the Smart Connector tool smart connector. To connect elements using this tool, drag the connector from one connect dot to another.
  • Use Line, Fill, Shadow and Text tools to format diagram objects.
Entity Relationship Diagram Examples

Example 6. Entity Relationship Diagram Examples

The ERD solution from ConceptDraw Solution Park extends ConceptDraw DIAGRAM ector graphics and diagramming software with the ability to describe a database using the Entity-Relationship model.

The ERD solution provides entity relationship diagram examples, templates and library of vector stencils.

ERD Solution

Example 7. Entity Relationship Diagram solution

Entity Relationship Diagram examples from ERD solution for ConceptDraw DIAGRAM can be used as a start point for professional ERD drawing. Entity Relationship Diagram examples can be simply modified to illustrate the logical structure of exact database.








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