Sunday, 13 March 2011

Entity Relationship Diagram Reminder

This little blog is a gentle reminder of the components of a simple entity relationship diagram. As with any ‘little’ example, the entities are involved are somewhat contrived. In this case we have a customer table linked to an address table.





I seem to remember someone telling me, a long time ago, that there should be "no dead crows", meaning that the crows foot end of the table connector should always point down...

4 comments:

Ariel said...

What software did you use to create this diagram?

Thanks in advance!

Roger Hughes said...

The diagrams were created by Visual Paradigm UML - Community Edition.

Macy Dalby said...

Thanks this info was really helpful! I used a website called Lucidchart to find er diagram examples and it was really easy to understand. If you use diagrams often you should check it out!

Karren Barlow said...

Thanks for the help! Like Macy, I too have found some great ER Diagram Examples using Lucidchart. Their site is very helpful and easy to use! Give it a try!