Some comments from ONS UK which could possibly be addressed in the update...
One thing that would be really useful is a clear understanding of where "Admin Data" might fit in. I have been told that the model covers this aspect of producing statistical outputs but remain to be convinced so either some clear guidance of where it fits in or some tweaking of the model or descriptions would be most welcome.
What I do find missing though is fieldwork management (seems to be tied up in "run collection") and analysis of data about the collection process (paradata).
There are also dynamic elements to processing which imply iterative use of the model which again does not seem to fit with the current static model.
I hesitate to mention "Big Data" since I'm not sure that a place can be found for it but again it might be useful to keep in mind to ensure the model doesn't date too quickly.