Notations

Currently, bigER supports the following notations:

• default
• bachman
• crowsfoot
• chen
• minmax
• uml

Example for specifying the notation in the header of .erd files:

erdiagram Example

// options can be in any order
generate=off   
notation=default

// elements ...

The default option is used if the notation is not specified.

Default

Bachman

Cardinalities

Syntax	Description
A[0]	Zero or One
A[0+]	Zero or More
A[1]	One and only One
A[1+]	One or More

Examples

Crow's Foot

Cardinalities

Syntax	Description	Diagram
A[0+]	Zero or More
A[?]	Zero or One
A[1]	One and only One
A[1+]	One or More