Design Element: Crows Foot
for Entity Relationship Diagram - ERD
Entity-relationship Diagram (ERD) is a perfect tool which lets execute the detalization of data warehouse for designed system, as well as documenting the entities of the system and their interactions each other, including the identification of important domain objects (entities), the properties of these objects (attributes) and their relationships to other objects.
Creating an ERD requires choosing a specific set of notations that best serve the specific database being designed. Chen’s original notation had a linguistic approach, where boxes representing entities could be thought of as nouns, and the relationships between them were in verb form, shown on a diagram as a diamond.
Eventually Chen’s style was adapted into the Crow’s Foot notation, where relationships were shown as single labeled lines – this quickly became the popular standard, due to improved readability on diagrams, with a more efficient use of space on the page.
ConceptDraw DIAGRAM software extended with Entity-Relationship Diagram (ERD) solution from Software Development area of ConceptDraw Solution Park allows you to draw ER diagrams for depicting a database using the ERD diagram design element Crow's Foot - Crow′s Foot notation icons.
Example 1. Design Elements — Crow's Foot (Mac OS X, Windows) for Entity Relationship Diagrams
The Entity-Relationship Diagram (ERD) solution offers also a lot of samples of ER Diagrams of Crow's Foot and also Chen's notations, and two templates providing useful quick start. All they are professional looking, stylish and attractive and are proposed for using from ConceptDraw STORE.
Example 2. Entity Relationship Diagrams solution, examples and template
The samples you see on this page were created in ConceptDraw DIAGRAM software using the Entity-Relationship Diagram (ERD) solution and show the ER Diagrams created with Crow's Foot notation. An experienced user spent 10 minutes creating these samples.
Use the Entity-Relationship Diagram (ERD) Solution for ConceptDraw DIAGRAM to create quick and easy your own ERDs using the Crow's Foot and Chen's notations.
All source documents are vector graphic documents. They are available for reviewing, modifying, or converting to a variety of formats (PDF file, MS PowerPoint, MS Visio, and many other graphic formats) from the ConceptDraw STORE. The Entity-Relationship Diagram (ERD) Solution is available for all ConceptDraw DIAGRAM or later users.
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