Interaction Fragments (OOM)

An interaction fragment allows you to group related messages in a sequence diagram. Various predefined fragment types are available allowing you to specify alternate outcomes, parallel messages, or looping.

An interaction fragment can be created in the following diagrams:

In the example below, the User sends a request to the Account Page. The two alternative responses and the conditions on which they depend, are contained within an interaction fragment.

• Creating an Interaction Fragment
  You can create an interaction fragment from the Toolbox.
• Interaction Fragment Properties
  You can modify an object's properties from its property sheet. To open an interaction fragment property sheet, double-click its diagram symbol in the top-left corner near the operator tag. The following sections detail the property sheet tabs that contain the properties most commonly entered for interaction fragments.
• Manipulating Interaction Fragments
  You can manipulate interaction fragments with some limitations.