Activity Diagram with Sub-Activity

[BiSb]

Hi,

I'm trying to display a Sub-Activity in an Activity diagram on a a higher level, like shown here:



However, if I paste the Sub-Activity as Link, I'm unable to create outgoing Control Flows. If I add it as Action (call behavior) I'm unable to display its content.

Can someone please help me out?

Greetings
Sebastian

[qwerty]

You need to use the instance. To show the contents you can drag the diagram inside and resize it to fit.

q.

[BiSb]

What you mean is, I have to add the instance (Action (call behavior)) and overlay the action with diagram, right?

And additionally, there is no way to create a diagram, like Sparx is showing in their own example?

Greetings
Sebastian

[Geert Bellekens]

A sub-activity doesn't really exist. Something is either an action, or it's an Activity.

Now an action can be Structured, so it can contain other actions. That is what the image is supposed to show I think.

Geert

[BiSb]

Sub-Activity is just the wording from the EA docu:

https://sparxsystems.com/resources/gallery/diagrams/software/sw-activity_diagram_with_sub-activity.html

There is a "Structured Activity" object type in EA, but that is an Activity, which can't have (in EA) outgoing Control Flows, in contrast to the example from the EA docu. Then there are the object type "Action (call behavior)", which are instances of other Activities and can have outgoing Control Flows, but it can't display his enclosed Activity diagram.

[Geert Bellekens]

That particular example in the documentatio is completely wrong as it uses Activities connected with control flows.

EA now also doesn't allow you anymore to create such a diagram.
I'm not sure what the best way would be to create something similar in a UML compliant way.

Geert

[BiSb]

Thx Geert, that confirms my apprehension. I guess what qwerty suggested, is a good way:

You need to use the instance. To show the contents you can drag the diagram inside and resize it to fit.

q.