In UML models, a note is a diagram element that contains comments or textual information about a particular diagram element. Notes are connected to diagram elements using note attachments. You can add notes and note attachments to diagram types.
You can use several note attachments to indicate that a single note pertains to several diagram elements.
Typically, notes and note attachments do not have names.
As the following figure illustrates, a note and note attachment are displayed as a rectangle with the upper-right corner folded over, and a dashed line that connects the note to the diagram element.
Parent topic: Class diagrams
Related tasks
Linking notes to modeling diagrams
Attaching notes to modeling diagram elements