Although EAD is an excellent system, we do not use it at the
University of Winnipeg. Neither do we use the RAD which is difficult
and not good. Rather, we use aFR = archival First Record. Your can
see it at http://www.uwinnipeg.ca/~stevens/index.htm.
aFR applies the linked field system of the Web with HTML, and does
not try to duplicate old flat-file USMARC for modern books.
USMARC and RAD do not meet the different needs of archives and
manuscripts. I think that you would find it interesting.
Wesley M. Stevens