Crow's Foot Notation

< Entity-relationship model
 * Content facilitator: Tim Ruijters
 * Dutch: Kraaienpootnotatie
 * Index: CFN
 * Movement: Designers

Introduction
You have six possible relaties between two entities.

Example 1

 * In the example below you can see that an artist can perform zero, one or many songs.
 * In this example a song can only be performed by one and only one artist. In reality more than one artists can perform a song.



Example 2

 * DeleteContact

More info

 * https://vertabelo.com/blog/crow-s-foot-notation

Index

 * CFN in...
 * One and only one