Crow’s Foot Notation

Nowadays are used large number of data modeling techniques, but the most common is Entity-Relationship Diagram (ERD). Several notations are used for ERDs, the most popular is Crow’s Foot notation or IA (Inverted Arrow) notation proposed by Gordon Everest. With its help, it is convenient to create clear and understandable diagrams with large number of attributes.

Crow’s Foot notation suggests the use of boxes to represent the entities and the lines to illustrate the relationships between these entities. Each box contains the name of the entity (noun, obligatory unique within this model) and also its attributes. Each connection line has a name indicated by verb, on the both ends of it are placed the special graphical symbols, which indicate the cardinality and modality. The cardinality determines the counts of relationships, such as one-to-many, one-to-one, many-to-many; one is represented by a vertical straight line and many - by crow's foot symbol. Modality of relationship can be specified by one of two values: one that is indicated by the straight line, or zero that denotes on the optionality of relationship and is represented as the empty circle.

Crow’s Foot Notation solution extends ConceptDraw PRO software with powerful drawing tools, samples and library of predesigned vector Crow's Foot notation icons to help you easy describe the databases using the Entity-Relationship models and design professional-looking ER diagrams based on Crow's Foot notation.


There is 1 stencil library containing 17 vector graphics in the Crow’s Foot Notation solution.

Design Elements — Crow’s Foot Notation


Design Elements — Crow’s Foot Notation

Examples

The samples you see on this page were created in ConceptDraw PRO using the Crow’s Foot Notation solution, and demonstrate some of the solution's capabilities and the results you can achieve.

All source documents are vector graphic documents. They are available for reviewing, modifying, and converting to a variety of available formats (PDF file, MS PowerPoint, MS Visio, and many other graphic formats) from the Solution Park, for all users who have installed the Crow’s Foot Notation solution.

Example 1: Crow’s Foot Notation — Educational Data Base

This diagram was created in ConceptDraw PRO using the ERD, Crow’s Foot Notation Library from the Crow’s Foot Notation Solution. An experienced user spent 15 minutes creating this sample.

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.

Crow’s Foot Notation — Educational Data Base

Example 2: Crow’s Foot Notation — Entity-Relationship Model Diagram

This diagram was created in ConceptDraw PRO using the ERD, Crow’s Foot Notation Library from the Crow’s Foot Notation Solution. An experienced user spent 15 minutes creating this sample.

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.

Crow’s Foot Notation — Entity-Relationship Model Diagram

Example 3: Crow’s Foot Notation — Data Model in IE

This diagram was created in ConceptDraw PRO using the Crow’s Foot Notation Library from the Crow’s Foot Notation Solution. An experienced user spent 15 minutes creating this sample.

This Entity-Relationship Diagram sample illustrates the data model of Wiki system using Information Engineering (IE) notation or Crow's Foot notation. Even complex ERD with a lot of entities, relationships and many attributes can be designed in minutes in ConceptDraw PRO.

Crow’s Foot Notation — Data Model in IE

Inside

Crow’s Foot Notation Solution for macOS

Crow’s Foot Notation Solution for Microsoft Windows

What I Need to Get Started

ConceptDraw PRO and the “Crow’s Foot Notation” solution, found in the Software Development area of ConceptDraw Solution Park, are all you need to get started. Make sure both are installed on your computer.

How to install

Download and install ConceptDraw Store and ConceptDraw PRO. Next, install the “Crow’s Foot Notation” solution using ConceptDraw Store.

Crow’s Foot Notation Solution - Free Install

Start using

Crow’s Foot Notation Solution - Start Using