Trigger modeling in Interaction diagram

[Oscar]

I'm wondering how to model the implicit trigger activation in a interaction diagram (uml 1.x : sequence diagram) or communication diagram (uml 1.x : collaboration diagram).

For example: the FormGetsFocus-trigger can be activated by any user-action or by any operation.
To emphasize the implicit trigger-activation I don't want to model the previous actions or operations.

Would a "found message" be appropriate ?


Any other suggestions ... ?


tia,
Oscar

[Oscar]

Hmm, no other suggestions.
I'll use the found message.

For the curious
A found message is a message where the receiving event occurrence is known, but there is no (known) sending event occurrence. We interpret this to be because the origin of the message is outside the scope of the description. This may for example be noise or other activity that we do not want to describe in detail.

[Stephen]

Found message looks useful - I sometimes add a "generic" triggering object if I have some particular wish to detail the circumstances of the trigger.

But the message would give you as much flexibility..

Stephen

[Oscar]

Thanks Stephen

In this particular case I'll stick to the found message, the diagram is already crowded with objects and the found message has a small (visual) footprint.

Oscar

[thomaskilian]

Just a hint: you can edit and delete your message with YaBB   (like this one)

Cheers, Thomas

[Oscar]

Thanks Thomas,

It just shows that one need to look (closely) at the user interface.
I completely missed the remove and modify buttons (well I did not even look for it, being used to a forum where you could only post messages).

Oscar