Creating a Message

You can create a message between two selected actors or two activations.

This task shows you how to:

Create a Message

You can a message between two actors.

Before you begin:
  • Create a sequence diagram view and activate it. For more information, see Creating Sequence Diagrams.
    Tip: From the tree, double-click a sequence diagram view to activate it.
  • Insert an actor. For more information, see Inserting a New Actor.
  1. From the active sequence diagram view, select an actor, a lifeline or an activation.

    Notes:
    • If the life lines of logical actors are selected, logical messages are created according to the connection between the selected actors.
    • If activations linked to functions are selected, functional messages are created according to the functional connection between the functions linked to the selected activations.
    • If activations not linked to functions are selected, logical messages are created according to the connection between the selected actors.

  2. From the Sequence Diagram section of the action bar, click Create New Message.
  3. To link the selected actor to another actor, from the active sequence diagram view, click the second actor you want to connect.
    The Flow/System Type Association dialog box appears.
  4. In the Flow/System Type Reference section of the Flow/System Type Association dialog box:
    1. In the Title box, enter the title to be displayed in the tree and in the 2D representation.

      Note: The Name box displays the non-editable and unique key server identifier.

    2. Optional: Enter a description.
  5. In the Flow/System Type Interface Instance section of the Flow/System Type Association dialog box, type a Flow/System Type Interface Instance Identifier.
  6. Click Next.
    A context toolbar appears in view, next to the created message, to let you choose a message type option.
  7. In the context toolbar, select one of the following message type options:
    • : Synchronous
    • : Asynchronous
    • : Return
    The message line is updated according to the selected message type option.

A message is created and displayed in the active sequence diagram view between the two selected actors.

Create a Message In Hybrid Sequence Diagram

An hybrid sequence diagram is a sequence diagram where functions are allocated to logical components.

Before you begin:
  1. Double-click the sequence diagram created under the Logical node.
  2. In the Sequence Diagram section of the action bar, click Create New Activation
  3. To position the activation on an actor, click its lifeline.
  4. In the Activation PLM Object dialog box, select the function allocated to the logical actor.
    The activation is placed. Its label displayed the function instance allocated to the logical actor.
  5. Right-click the activation of the first actor and select Create New Message.
  6. In the Activation PLM Object dialog box, select the function allocated to the second actor.
  7. Select the second logical actor.
    The activation is placed on the second actor and the message is created between the two activations.

Create a Self-Message Between Two Activations

You can create a self-message between two activations from allocated functions for a hybrid sequence diagram.

Before you begin:
  1. Double-click the sequence diagram created under the Logical node.
  2. In the Sequence Diagram section of the action bar, click Create New Activation.
  3. To position the activation on the actor, click its lifeline.
  4. In the Activation PLM Object dialog box, select the function allocated to the logical actor.
    The activation is placed. Its label displayed the function instance allocated to the logical actor.
  5. Repeat Step 4 to place the activation.
  6. Right-click the activation of the first actor and select Create New Message.
  7. Select the second activation.
    The message is created between the two activations which represent the flow between two allocated functions.