Draw an ER Diagram in 3 Steps
How to draw an effective ER diagram? Is there an easy way for beginners to create entity relationship diagrams? This method will help you produce high-quality ER diagrams in minutes.
An ER diagram is a data modeling technique showing how entities or concepts relate to one another. It's a crucial tool for software engineering during the design phase of the development process. ER diagram uses special symbols to represent entity classes, attributes and relationships. It's much easier to create ER diagrams when you already have these symbols.
Step 1: Add Pre-made ER Diagram Symbols
We have made an effort to cover almost all symbols needed in ER diagram design. You don't have to draw a single shape to complete the diagram.
To get the symbols, simply click Library button on the top left corner under the Ribbon, and navigate ERD and database symbol category.
To use the symbols, first drag from the library and drop on the canvas. Then customize the symbols by means of changing the size, color and line. The shapes are highly editable. It's easy to separate the shapes into parts, and you can take out a component or add new elements to create new symbols.
When connecting symbols, it supports snap and glue feature to make sure the line is
glued to the shape.
Step 2: Annotate Each Symbol with Appropriate Texts
Double click on the default text to edit your own text.
Step 3: Apply a Theme to Make the ER Diagram Visually Pleasing
It's easy to change the whole ER diagram's appearance by changing the active theme. When applying a theme, you can format the colors and effects in an entire diagram with a single click.
View ER Diagram Examples
Here shows some complete ER Diagram Examples created by Edraw. The ER diagrams can be downloaded and edited as starting templates.
Download Edraw and see how quickly and easily you can draw ER Diagram.
ER Diagram Symbols