We have no way of knowing, yet, what Bibframe will end up as--it is still very much a work in progress, Thomas shows with the addition of "hasExpression" and "expressionOf".
In the meantime, if we are making RDA records, then we have to use the RDA elements in the way that RDA defines them; just as we have to (if only it were true) use MARC elements the way that MARC defines those elements. - - - - - - - - Deborah Fritz TMQ, Inc. debo...@marcofquality.com www.marcofquality.com -----Original Message----- From: Resource Description and Access / Resource Description and Access [mailto:RDA-L@LISTSERV.LAC-BAC.GC.CA] On Behalf Of Brenndorfer, Thomas Sent: Friday, May 10, 2013 10:02 AM To: RDA-L@LISTSERV.LAC-BAC.GC.CA Subject: Re: [RDA-L] Recording alternate content and physical forms -- Bibframe > -----Original Message----- > From: Resource Description and Access / Resource Description and > Access [mailto:RDA-L@LISTSERV.LAC-BAC.GC.CA] On Behalf Of J. McRee > Elrod > Sent: May-09-13 9:10 PM > To: RDA-L@LISTSERV.LAC-BAC.GC.CA > Subject: Re: [RDA-L] Recording alternate content and physical forms" > > Deborah said concerning incorporating expression level format into 520: > > >It might not seem to matter so much with our mixed-up MARC bib > >records, especially in the 500 general note fields, but it will > >matter a great deal in the future that we use the correct element for > >the data that we > provide. > > Expression level does not exist in Bibframe, only work / instance / > authority / annotation. So why are we concerned with expression level data? http://bibframe.org/vocab/Work.html has recently added the RDA-derived properties "hasExpression" and "expressionOf" to the Work resource type. The top level resource types (Work, Instance, Authority) can contain further subtypes. For example, Bibframe Authority is similar to MARC authority records for persons, corporate bodies, and subjects. The Bibframe Work resource type splits off work and expression data from MARC authority records for works and expressions, and combines them with data for works and expressions found in bibliographic records. Bibframe Work is essentially a new way of capturing work and expression data that was once done in MARC authority records, and adds data for works and expressions found repeated in bibliographic records. This is very much in keeping with RDA chapters 6 and 7 which group together all data associated with works and expressions, including instructions for authorized access points, regardless of this data being found scattered in MARC authority or MARC bibliographic records. Thomas Brenndorfer Guelph Public Library
