Re: Tim Berners-Lee on the Semantic Web

From: Karen Coyle <lists_at_nyob>
Date: Wed, 21 Oct 2009 15:32:20 -0700
To: NGC4LIB_at_LISTSERV.ND.EDU
Jonathan Rochkind wrote:
> All of this makes sense. BUT once someone HAS established a work for 
> The Conquest of Bread and filled in it's subjects, I shouldn't _have_ 
> to go assigning subjects every time I make a new manifestation record, 
> should I?   I should be able to inherit from that work, such that when 
> the work subjects are changed (someoen does a better job), my 
> manifestation knows that too.

Right. In the same way that when I use a name heading, if an authority 
record already exists I don't need to add cross references. So there is 
some inheritance here, although as Aaron Dobbs points out, if you let 
people delete subject headings from Works, then you may have deleted 
them for everyone else. This is one of the reasons why a strict 
hierarchy doesn't work for me, because of the ripple effects. So now we 
come to all of the issues of ownership and versioning, and how those get 
controlled in the process. This would be an interesting scenario to work 
through: how do we share in a way that we get the efficiencies but 
minimize the ripple of disruption that some changes could cause? This 
fits into the idea that was floating around of trying to design a system 
of "distributed cataloging."

>
>
> But you've got to do all that on top of a formalized domain model. 
> Having a formalized domain model is what even gives us the language to 
> have this discussion. And the work you do on top of the formalized 
> domain model will no doubt give you insights suggesting changes in the 
> underlying formalized domain model, in an iterative process. That's 
> fine. But you've got to start sometime, and you've got to have a 
> formalized domain model.

I don't think that anyone is arguing that we don't need a formalized 
model. I consider it a given that we do. Unfortunately, a bad model 
isn't going to do us any good, and there are parts of FRBR that I have 
serious doubts about. (Remember that the Future of Bibliographic Control 
report said that LC should not accept RDA until we have done some 
testing of FRBR -- if the underlying model is flawed, what we build on 
it cannot work.) We DO need to hack away on FRBR to see if it works, but 
unfortunately we cannot change it -- FRBR is fully under the control of 
IFLA and IFLA does not seem to be interacting beyond the boundaries of 
its committee structure in the development of the models.

I am also very concerned about some of the conclusions in FRAD, because 
they seem to indicate that the committee does not understand the E-R 
concept. An example of this is that FRAD has declared the name of a 
person, corporate body or family (in the form of a controlled access 
point) to be an entity in itself, and ditto the identifier for person, 
etc. I'd love for the IFLA work to be more open -- I want to know why 
they think like they do, and what their definition of an entity is, and 
all kinds of other things. I'd love to be having this conversation in a 
forum that would inform the FR models that IFLA is developing. Instead, 
I feel like we're in a "take it or leave it" situation. And, as you can 
imagine, I'm not happy about that.

kc

-- 
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Karen Coyle / Digital Library Consultant
kcoyle@kcoyle.net http://www.kcoyle.net
ph.: 510-540-7596   skype: kcoylenet
fx.: 510-848-3913
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Received on Wed Oct 21 2009 - 18:35:21 EDT