Its typical, you get a nice camera (or two), go on a couple of trips, and you've very quickly created gigabytes of photographs that you then need to sort through. Automator doesn't quite have the ability to bring in Riya for marking the people in your photos, or rating their quality, so you spend your Sunday afternoon just marking, annotating, rating, deleting, aligning, color-correcting, sharpening, etc.
I'm using iView Media Pro, and always wondered about the Subject and Scene options in the Metadata. iVMP has the best metadata editing I've found in any DAM. There just seem to be perhaps too many metadata options.
Turns out there is this whole history to photography. In fact, there are 28 groups of terms called NewsCodes that are used to help fully annotate media. These NewsCodes might specify that a media archive is of "cartoon", "criminal", "nightclub", or "derivative securities" and that the location was "underwater", "aerial", "rear view", or "offbeat". The IPTC NewsCodes offer a complete listing of the currently suggested vocabulary. And they're ever so thoughtful to offer a Windows program for viewing and saving the NewsML files.
iVMP allows you to easily bring in Vocabularies like the IPTC NewsCodes, except in simple text format. They're easy to manipulate, and I've formatted the Scene and Subject Code files that you can drop into (remove the underscores, or merge the files into your existing vocabulary files):
Maybe I'll put together a quick viewer or formatting utility if there's interest.