> -----Original Message-----
> From: Metadata Object Description Schema List 
> [mailto:[log in to unmask]] On Behalf Of Rebecca S. Guenther
> Sent: 20 September, 2005 09:42
> To: [log in to unmask]
> Subject: [MODS] MADS mapping draft
> 
> Please note that we've made some changes to the draft MARC 
> authorities to MADS mapping, since we discovered in writing 
> the stylesheet for conversion that the authority attribute 
> was missing. That became very complicated particularly 
> because of LCSH coding rules. A revision is up at:
> http://www.loc.gov/standards/mads/mads-mapping.html
> Please let us know if you see and possible errors.

One thing I also noticed about the mappings was the value of the authority attribute.  For the most part, the values follow the MARC relator list for thesaurus codes.  So I see: lcsh, cash, aat, sears, rvm, nal, and directions to use 040$f or 7XX$2.  But, then there are codes that are not reflected on the MARC relator list or are different, e.g., lcshcl <=> lcshac, naf, nlmnaf, lacnaf, etc.

It seems to make sense that the authority attribute's value contain a code from the MARC relator list.  So the question I have is why the difference for lcshac and will LC be adding the other missing codes to the MARC relator list?


Andy.