Please note : This help page is not for the latest version of Enterprise Architect. The latest help can be found here.

Add a Note to a Connector

This topic describes how you can connect notes and constraints to graphical relationships.

Notes enable you to provide explanations and further detail for one or more connectors on a diagram, with a visible note element, as in the example below.


Constraints let you specify a logical or informal constraint against a set of connectors; for example the {XOR} constraint in the image above indicates that only one of the connectors in the specified set can be true at any one time (exclusivity).

Attach a Note or Constraint to a Connector

To attach a note or constraint to one or more connectors, follow the steps below:

  1. Right-click on one of the connectors to attach a note to. The context menu displays.
  2. Select the Attach Note or Constraint menu option. The Link Relations dialog displays.
  3. Check all the connectors that participate in the set. In the example below, two connectors have been checked to participate in a logical constraint.
  4. Click on the OK button to complete the note or constraint creation.
  5. You can then use the normal Note dialog to enter the appropriate text for the note or constraint.


The constraint note is drawn slightly differently to a regular note, and has { and } automatically added to visually indicate the constraint form.