Modelling error handling in an activity diagram with an Interrupt Flow

[BiSb]

Hi again,

I'm trying to model an error handling. Please don't judge me too hard. 

My plan was to use an Interruptible Region and an Interrupt Flow starting at the Decision Node, going to the "Error handling" Action (Red square).



EA does not allow an Interrupt Flow from the Decision Node to the "Error Handling" Action outside of the Interruptible Region. My idea feels a little bit unusual. However, I could not find the reason why this is forbidden in the UML spec. Can someone tell me, why this is not allowed?

And also, what would be a better idea to model it?

Greetings
Sebastian

[qwerty]

You need an InteruptFlow (last connector in the Act. toolbox) and an InterruptibleActivitRegion (Region element) around the. Then you draw the InterruptFlow towards the Exception element where it ends in a pin accpting the exception element.

q.

[BiSb]

Hi again qwerty. 

Thanks for helping me out so often.

Back to the topic. What you write is exactly what I tried. But EA is not allowing to connect the Decision Node to the Action Pin with an Interrupt Flow.

Greetings
Sebastian

[qwerty]

Yes, this is not allowed. You need to have it go out of an action.

q.