I do not know if I truly understand your issue. I think that you are talking about the primarily relationship (between Group 2 and Group 1 entities) in FRBR, and relationships between a resource and persons in RDA. My understanding is:
In FRBR: A person (Group 2 entity) creates a work (Group 1 entity). A person has a "creation" relationship with a work. Here, " creates" or "creation" is a general term to cover a relationship between a person and a work. In RDA A person has a "creator" relationship with a work. Still, creator is a general term. It can be specified as "author", "artist", "compiler", depending on the case. In MARC and cataloging practice, I believe that the 100 field indicates the creator relationship between a person and a work. We can use subfield "e" to record a more specific relationship. The above is just my thought. Thanks, Joan Wang Illinois Heartland Library System On Wed, Nov 28, 2012 at 3:27 AM, Meehan, Thomas <[email protected]> wrote: > Dear all,**** > > ** ** > > Hello. I am having trouble trying to fit some aspects of RDA into a > theoretical model in my mind. I recently delivered some training on FRBR > and it was possible to explain everything in terms of entity-relationship > (ER) models, at least as far as I understand them: [Entities] which have > (attributes) and which have <relationships> to other [entities]. I hope my > brackets in place of various shaped boxes make sense. I understand this > should be possible with RDA too, but can’t figure out exactly where > Relationship Designators fit in. For example:**** > > ** ** > > [Shakespeare] has the <Creator> relationship to the work [Hamlet]. **** > > ** ** > > If I want to specify that Shakespeare is the Author of Hamlet, does the > relationship actually change to something more specific?:**** > > ** ** > > [Hamlet] - <Author> - [Shakespeare] **** > > ** ** > > In which case, does <Author> have a recognised hierarchical relationship > to <Creator>? I would guess not as RDA clearly says the relationship is > Creator and doesn’t describe Author as being a relationship; however, > looking at the RDA Element Registry, Author is given as a subproperty of > Creator. Or, as they are termed relationship designators, does it merely > describe the relationship: an attribute of the Creator relationship perhaps: > **** > > ** ** > > [Hamlet] - <Creator> - [Shakespeare]**** > > where:**** > > <Creator> - (Relationship Designator) - <Author>**** > > ** ** > > What I mean is hard to write on lines of text, so I hope it’s clear. > Looking at the non-MARC examples in the Toolkit, the following is implied: > **** > > ** ** > > [Hamlet] - <Creator> - [Shakespeare]**** > > [Hamlet] – (Relationship Designator) - [Shakespeare]**** > > ** ** > > with no logical link between the two statements. Ironically, perhaps, MARC > binds the two clearly together using a single field, but I wonder how this > might look either in an ER model (are the relationship designators > attributes or relationships or attributes of relationships or something > else entirely?) or some kind of generic RDF triples. The following clearly > doesn’t work for instance:**** > > ** ** > > example:Hamlet rda:Creator example:Shakespeare .**** > > rda:Creator rda:RelationshipDesignator rda:Author .**** > > ** ** > > Presumably, given the RDA Element Registry version, the following would do > the trick (where Author is a recognised subproperty of Creator), although > the Toolkit doesn’t suggest this to me at all:**** > > ** ** > > example:Hamlet rda:Author example:Shakespeare .**** > > ** ** > > While I don’t wish to make a fool of myself here, I do also hope that I am > missing something obvious, especially as I am also slightly confused by > whether Title is an attribute of Manifestation or if Title Proper is, or if > they both are but again in a hierarchical relationship of some kind…**** > > ** ** > > Many thanks,**** > > ** ** > > Tom**** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ---**** > > ** ** > > Thomas Meehan**** > > Head of Current Cataloguing**** > > Library Services**** > > University College London**** > > Gower Street**** > > London WC1E 6BT**** > > ** ** > > [email protected]**** > > ** ** > -- Zhonghong (Joan) Wang, Ph.D. Cataloger -- CMC Illinois Heartland Library System (Edwardsville Office) 6725 Goshen Road Edwardsville, IL 62025 618.656.3216x409 618.656.9401Fax
