Dan,My advice: don't get too hung up on the definition of <unitdate> in the EAD 2002 tag library. The recent revision of DACS includes an EAD crosswalk and it's explicit that dates as defined by rule 2.4 in DACS should be encoded in <unitdate>. I'm not very familiar with RAD, but it seems reasonable that the types of dates as defined by RAD should go into <unitdate>, especially if it is qualified with @datechar.MikeOn Thu, Jul 4, 2013 at 1:02 PM, Dan Gillean <[log in to unmask]> wrote:
I am wondering about how other users are encoding dates that are not specifically dates of creation in their EAD output.
As I understand it, <unitdate> in EAD 2002 is reserved explicitly for the “creation year, month, or day of the described materials.” The @DATECHAR allows for inclusion of some contextual information so that, for example, “accumulation” can be noted. However, dates of contribution, publication, manufacture, broadcast, and so forth do not seem like a natural fit for the element.
In addition to dates of creation, the US content standard DACS allows for dates of publication, broadcast, and “recordkeeping activity.” In Canada, the RAD standard allows for dates of custody, publication, contribution, collection, reproduction, distribution, broadcasting, and manufacturing (often at the item level), in addition to creation and accumulation.
I am looking for solutions to managing these kinds of dates in EAD – we have considered putting them in a <chronlist> as events like so:
<date type="broadcasting" normal="19990000/199990000">1999</date>
<note type="eventNote"><p>This is a note for Bobby Broadcaster</p></note>
NEXT EVENTS WOULD GO HERE....
…where the <name> associated with an event would allow a link to be created with an associated authority record. However, I am not sure if this is the best solution. Where to put the <chronlist> in the EAD output remains a problem as well – putting it in the <bioghist> does not seem appropriate as many of the dates that could be included relate to the archival description object and not the creator – different persons/organizations may be associated with publication, broadcasting, and so forth.
Does anyone have a better suggestion for managing dates other than creation associated with an archival description? Do you have examples of your EAD output?
Thanks in advance,
Atom Product Manager / Systems Analyst,
Artefactual Systems, Inc.