I've spent a while this week looking at the various models and trying to fit something to my actual online teaching experience.
My struggle has been that at lot of the models seem to imply and entire online course, whereas my sessions, as a Librarian, have thus far, been one off sessions. (Not that this will necessarily continue this way, after my experience with this course.)
I looked at the AUTC design, and that didn't quite fit, and whilst I like the Salmon e-tivities model - when I started to complete this - that didn't fit either.
Therefore I see my session as more of an individual design, or in the context of the entire course, just one of the e-tivities a student may participate in.
Whilst most of my session needs to be delivered synchonously, having it within Adobe Connect enables the students to refer back to the webinar or Camtasia Vodcasts asynchonously to further their understanding and learning.
The students who tend to sign up to these sessions either online or face to face, are signing up because it is at their point of need i.e. they are about to start a dissertation or having got a low mark on an assignment due to poor evidence, they realise they need to improve their skills.