OK. I have great trouble equating a "holding" to an annotation. A holding is an integral part of an instance and a work. Cover art, descriptions, and reviews really aren't integral, they are extra. You can refer to several million bib records in LC to see this as you are unlikely to find any without holdings but millions without the other annotations.
To take this a step further, as I see it, a work really can't exist, except in the mind of the creator, without an instance, even if that is only the author's manuscript, and an instance really can't exist without an item or holding, again, even if only the handwritten manuscript. I really can't practically get to a work without working backward from an item to an instance to a work. Anything else is vaporware. I can't get into the mind of the creator until the work is recorded in some way, once that work is recorded there is an instance and unless I can have that instance in my possession, as an item, I can't catalog the work or instance. The three forms are integral.
I don't see that holdings are any more annotation that instances. Items should be core resources, not annotations, in my humble opinion.
Technical Services Librarian
Lake Jackson, TX
Michael.mitchell at brazosport.edu
BIBFRAME Annotation Model -
BIBFRAME Community Draft, 26 August 2013 (second draft)
As with the previous draft (April 30) this is a work in progress, comments and discussion encouraged.
Thanks to the BIBFRAME community, including the Early Experimenters, for the many comments and suggestions, which have resulted in what we think is a significantly improved document.
Library of Congress