...

I didn't find this in the standard, but I might have missed it out. Whatever, after a lengthy discussion with Juraj Ivancic, I came to the conclusion that MSM needed what we called an "execution row", which is pretty much your internal transitions for simple states.

I'll need to search the archives for this discussion (unless it was elsewhere). As for the standard: using the UML 2.2 Superstructure document (it is the one I have handy), Section 15.3.15 describes TransitionKind.

It's ok, I found it in 15.3.14. Just before the completion events actually, so we can have a look at both at the same time ;-)