There is always a discussion whether actor swim lanes should be shown in an activity diagram. In many cases this may
lead to hard to read diagrams. Focus of the activity diagram should be on the system’s internal functional flow.
A recommended alternative is to capture the interactions of an action with the environment by means of a SysML Action
Pin, stereotyped ActorPin. In this case the name of the ActorPin must be the name of the associated actor. The arrow in
the pins shows the direction of the respective link (In, Out or In/Out). The creation of actor pins is supported by the
SE Toolkit.
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Right click on the relevant action and select SE-Toolkit\Add Actor Pins.
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In the dialog box select the direction of the link.
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In the Actor drop-down menu select the relevant actor.
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In the dialog box click Add.
The SE-Toolkit feature Create New Scenario from Activity Diagram uses the pin information when
deriving sequence diagrams from the activity diagram. |
