Actually in theory this applies to every scene in a longer work. In practice it might be overkill, though it can be useful if you’re struggling with a particular scene.
It seems like this a journey most (if not all) of us have taken (or are taking!) through Dramatica. Figuring out just how much of the theory to apply and at what stage of the writing process isn’t always self-evident.
If you haven’t checked it out yet, you should take a look at @jhull’s Subtext service, which is designed to streamline and strip out the extraneous stuff to facilitate actually finishing a story.
One thing to remember is that Dramatica is supposed to describe how the human mind works. If you get most of the story there, your intuition will most likely fill out the rest, in ways that may not even be obvious when you’re writing.
@tous put it best in a recent post:
If dramatica is about a mind solving a single problem… don’t I have a mind? And wouldn’t the software already be installed in my head?