Entity Relationship Diagram Examples


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Crow’s Foot and Chen's notation examples

Create an Entity-Relationship (ER) model is to visually represent the structure of a business database, where data equates to entities (or objects) that are linked by defined relationships expressing dependencies and requirements. By nature it is an abstract visualization, the first step in the design process towards creating a logical and functional database.

ConceptDraw PRO diagramming and vector drawing software gives the ability to describe a database using the Entity-Relationship model. Entity-Relationship Diagram (ERD) solution from the Software Development area supplies the ConceptDraw PRO with icons advocated by Chen's and Crow’s Foot notation that can be used when describing a database.

Entity-Relationship Diagram (ERD) solution contains incredibly large collection of Entity Relationship Diagram examples, samples and templates for data modeling offered at ConceptDraw Solution Browser.

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 PRO 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 Solution Browser, check the ERD solution and click “Install”.
This solution extends ConceptDraw PRO 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 Solution Browser 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.

Example 6. Entity Relationship Diagram Examples (Mac OS X and Windows)

The ERD solution from ConceptDraw Solution Park extends ConceptDraw PRO vector 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 PRO 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.









Use Product:

  • Software Development Tool
  • Diagram Software
  • Technical Diagramming Tool
  • Business Diagramming Tool
  • Professional Business Graphics Tool
  • ERD Diagrams Software
  • Cross Platform Compatibility


Use Solution:

Entity-Relationship Diagram (ERD)
  • Describing a database
  • Illustrate the logical structure of databases
  • Chen's notation
  • Crow’s Foot notation
  • Quick-Start ERD templates and samples
  • Entity Relationship Diagram examples
  • ERD vector elements
  • Import/Export Microsoft Visio™
  • Export to graphics files and PDF
  • Export to PPT™
  • Make Presentation


See also Entity-Relationship Diagram Example:


ERD diagram example
Entity-Relationship Diagram


ERD diagram example
ERD Diagram Example


ERD diagram example
Entity-Relationship Diagram


ERD diagram example
ERD Diagram Example




See also samples:


Compatibility: Apple® OS X 10.10 or later
Microsoft® Windows® 7/8.1/10

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