Communication Diagram

Create Communication Diagram

To create a Communication Diagram:

1. Select first an element where a new Communication Diagram to be contained as a child.
2. Select Model | Add Diagram | Communication Diagram in Menu Bar or select Add Diagram | Communication Diagram in Context Menu.

See also

UML Communication Diagram - For more information about UML Communication Diagram.

You can show or hide sequence numbers of messages. To show or hide sequence numbers of message:

1. Check or Uncheck showSequenceNumber property of Sequence Diagram or Communication Diagram.

Lifeline

To create a Lifeline:

1. Select Lifeline in Toolbox.
2. Drag on the diagram as the size of Lifeline.

To create a Lifeline from a Classifier (Class, Interface, etc.) by Drag-and-Drop:

1. Drag a Classifier from Explorer.
2. Drop on the diagram.

You can use QuickEdit for Lifeline by double-click or press Enter on a selected Lifeline.

• Lifeline Expression : Edit lifeline expression.

  Syntax of Lifeline Expression

  lifeline ::= [ '<<' stereotype `>>` ] [ visibility ] name [ '[' selector ']' ] [ ':' type ]
  stereotype ::= (identifier)
  visibility ::= '+' | '#' | '-' | '~'
  name ::= (identifier)
  selector ::= (string)
  type ::= (identifier)

• Visibility : Change visibility property.

• Add Note : Add a linked note.

• Select Type : Select a type of the lifeline.

• Create Type : Create a Class as a type of the lifeline.

• Add Connected Lifeline : Add a lifeline with a connector.

• Add Create Message with Lifeline : Add a create message with a lifeline.

• Add Self Connector : Add a self connector.

• Add Forward Message : Add a forward message with a connected lifeline.

• Add Reverse Message : Add a reverse message with a connected lifeline.

Connector

To create an Connector (or Self Connector):

1. Select Connector (or Self Connector) in Toolbox.
2. Drag from a Lifeline and drop on another Lifeline. (Just click on a Lifeline if you want to create a Self Connector.)

You can use QuickEdit for Connector by double-click or press Enter on a selected Connector.

• Name Expression : Edit name expression.

  Syntax of Name Expression

  expression ::= [ '<<' stereotype `>>` ] [ visibility ] name
  stereotype ::= (identifier)
  visibility ::= '+' | '#' | '-' | '~'
  name ::= (identifier)

• Visibility : Change visibility property.

• Navigability : Change navigability property.

• Add Forward Message : Add a forward message on the connector.

• Add Reverse Message : Add a reverse message on the connector.

Message

To create a Forward Message:

1. Select Forward Message in Toolbox.
2. Click on a Connector.

To create a Reverse Message:

1. Select Reverse Message in Toolbox.
2. Click on a Connector.

You can use custom sequence numbers instead of auto-generated integer sequence numbers.

1. Enter sequence number for each Message’s sequenceNumber property.
2. Change sequenceNumbering property of Sequence Diagram or Communication Diagram to custom.

You can use QuickEdit for Message (See Message).