Hi, Karen:
Thank you very much for bringing up these great points. I do share your
concerns. In addition, allowing linking from a manifestation record
back to multiple expressions might be hard for data quality control,
particularly for data integrity control during CUD processing (e.g.
I have to agree with Jenn on the practicality of not dealing with aggregates
for sound recordings. There are plenty or recordings that have no unifying
purpose, and where the constituent works are unrelated (except, say, that
they fill the 72 minutes of space on a CD gracefully.)
However, there
Hi Stephen and all,
We’ve made an intentional decision for the V/FRBR project to not use the
concept of an aggregate work. The many-to-many nature of Expression to
Manifestation for our need adequately models the fact that two symphonies were
released on the same disc (for example). For our
So does that mean that you have Manifestations... which do not belong to
any Work at all? Or have you just left Works out of your modelling
altogether?
My understanding of the FRBR model is that it insists that _all_
manifestations belong to an expression which belongs to a work. This is
18, 2010 11:22 AM
To: RDA-L@LISTSERV.LAC-BAC.GC.CA
Subject: Re: [RDA-L] FRBRized data available for bulk download
Hi Stephen and all,
We've made an intentional decision for the V/FRBR project to not use the
concept of an aggregate work. The many-to-many nature of Expression to
Manifestation
J. Rochkind wrote,
So does that mean that you have Manifestations... which do not belong to any
Work at all? Or have you just left Works out of your modelling altogether?
My understanding of the FRBR model is that it insists that _all_
manifestations belong to an expression which belongs
Quoting Jonathan Rochkind rochk...@jhu.edu:
My understanding of the FRBR model is that it insists that _all_
manifestations belong to an expression which belongs to a work. This is
what leads to aggregates neccesarily being works -- you've got a
manifestation in front of you which is clearly
In the VTLS FRBR implementation, a manifestation for an aggregate can
be linked to multiple Expressions/Works. One of the Expression/Work is
for the aggregate as a whole. The other Expression/Works are for the
separate Works in the aggregate.
John Espley
VTLS Inc.
On 10/18/2010 1:58 PM,
Karen Coyle wrote:
snip
If you look at the simple Group1 diagram:
http://archive.ifla.org/VII/s13/frbr/fig3-1.jpg
you see that a manifestation can manifest more than one expression. So
there are two (at least) ways to go:
1) consider the aggregate a manifestation and an expression and a
work;
I take respectful exception to the choice of the word belong to when
describing relationships among the WEMI entities. To my mind, belong
connotes a relationship along the lines of whole-part: a chapter of a
book, if modeled as a Work in its own right, belongs to the larger
work in which it
Description and Access / Resource Description and Access
[mailto:rd...@listserv.lac-bac.gc.ca] On Behalf Of Karen Coyle
Sent: Monday, October 18, 2010 1:58 PM
To: RDA-L@LISTSERV.LAC-BAC.GC.CA
Subject: Re: [RDA-L] FRBRized data available for bulk download
Quoting Jonathan Rochkind rochk
On 18/10/2010 12:53 PM, Stephen Hearn wrote:
I've long considered the notion of aggregates as FRBR works to be
problematic, so I see a lot to admire in the Variations approach.
I haven't yet turned my attention to the Variations information, which
looks very interesting; but this calls up
Riley, Jenn wrote:
The Variations/FRBR [1] project at Indiana University has released
bulk downloads of metadata for the sound recordings presented in our
Scherzo [2] music discovery system in a FRBRized XML format. The
downloadable data includes FRBR Work, Expression, Manifestation,
Person,
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