Hi Amber,
I find that viewpoint a bit antithetical to linked data, that is: there
are levels of trust, but simply not trusting ANY other vocab/ontology
means LoC should probably just make an update to MODS to serve in some
lightweight JSON or something. I'm glad companies and organizations are
pushing BIBFRAME into the community more, though (2.0 introduced some
much-needed actual RDF conformity).
-Ryan
On Fri, 3 Feb 2017 22:47:18 +0000, Amber Billey <[log in to unmask]>
wrote:
>Hi Ryan,
>
>My understanding why the BIBFRAME vocabulary is entirely original and
>doesn't reuse classes and properties from other well established
existing
>vocabularies/ontologies is because it's being managed and maintained by
the
>Library of Congress (a government agency) -- and they need to have
complete
>and reliable control of their data. They cannot completely trust
existing
>vocabularies/ontologies no matter how stable they are.
>
>With the LD4P project we're working to replace or subclass BF classes
and
>properties with classes and properties from existing and stable
>vocabularies such as DCterms, Schema, CIDOC-CRM, Web Annotations Model,
>etc.
>
>Maybe we can convince LC to adopt our strategy, but I understand why
even
>if they don't.
>
>-Amber Billey
>
>Sent via mobile
>
>On Fri, Feb 3, 2017 at 1:19 PM Ryan E. Johnson <[log in to unmask]>
wrote:
>
>> Great points, and thanks for the discussion as always, Karen.
>>
>>
>>
>> For some background, we have been using an RDF-based schema/ontology
for
>>
>> a Hydra-based digital repository for almost 5 years. On the other
>>
>> thread, there was a lot of guessing about what linked data can do,
and I
>>
>> think I'm in a fortunate position to say what a non-schema.org, RDF-
>>
>> based library schema can pull off.
>>
>>
>>
>> Even without schema.org properties we achieve good SEO (e.g. someone
can
>>
>> type in a reasonably proximate collection name in Google and we are
the
>>
>> top 3 results). But as you cogently pointed out elsewhere, simple
things
>>
>> like adding maps become incredibly complicated, because all the
>>
>> wonderful tools built around the major APIs tend to assume JSON data
and
>>
>> an entire stack of technologies different than ours. Geospatial
metadata
>>
>> simply has no RDF options (we are hoping along with DPLA for
>>
>> developments in geoJSON-ld and other schemes), and we are stuck
waiting
>>
>> for that. The solution in the meantime has been to kludge it so that
we
>>
>> have basic Leaflet integration. So a relevant question is, who will
>>
>> build this whole new marketplace of RDF-based apps that aren't just
>>
>> parsing or serialization libraries? If we are only using this data
that
>>
>> has to be kludged just to support existing apps/APIs, there is little
>>
>> value added.
>>
>>
>>
>> What our metadata unit has most crucially learned is that making your
>>
>> own predicates (or properties) is potentially dangerous because now
you
>>
>> have lost the power of the crowd to improve understanding or
>>
>> implementation of it, or even if the predicate is necessary in the
first
>>
>> place. Someone on another thread said RDF-based data is instantly
able
>>
>> to be integrated with one another. In theory, yes, but in practice,
no.
>>
>> It's true that blind trust of others' schemes is necessary and you
could
>>
>> merge any RDF graph with another, but we still have to evaluate where
a
>>
>> data source fits into ours, what their domain/ranges are for
predicates,
>>
>> etc.
>>
>>
>>
>> When I look at BIBFRAME, I see an entire ontology built anew. Why
wasn't
>>
>> a first principle to borrow or at least map to as many Dublin Core,
>>
>> PREMIS, etc. predicates as possible? Is that a goal and a known task,
>>
>> and I shouldn't worry about it? If it doesn't at least map to
existing
>>
>> predicates used in the linked data world, it will become a niche
>>
>> ontology.
>>
>>
>>
>> Our new ontology will have very little BIBFRAME predicates because it
>>
>> doesn't seem to make any sense with its insistence on the
>>
>> Work/Instance/Item framework. Digital objects are just that...
objects,
>>
>> and we don't think our objects fit into this paradigm. That said, we
do
>>
>> sometimes have objects that come from our catalog, and if BIBFRAME
ever
>>
>> comes to our library we would of course figure out a mapping to our
>>
>> ontology, that would be much easier than the current MARC->MODS->our
>>
>> ontology mapping. But that's rather disappointing in the end.
>>
>>
>>
>>
>>
>>
>>
>> --Ryan
>>
>>
>>
>>
>>
>>
>>
>> On Thu, 2 Feb 2017 13:21:56 -0800, Karen Coyle <[log in to unmask]>
wrote:
>>
>>
>>
>> >Simon, interestingly, this person[1] thinks that BIBFRAME is too
much
>>
>> of
>>
>> >a conceptual model.
>>
>> >
>>
>> >One of the problems that I have is that the actual vocabulary
doesn't
>>
>> >always match the stated concepts. I had this experience recently
with
>>
>> >the Zepheira version, bibfra.me [2], that people often call "BF-
lite".
>>
>> >For example, "Agent" class includes the property "audience" from
>>
>> >Resource, but the definition of "audience" talks about the content
of a
>>
>> >resource. Things like that just jar me and don't seem logical. We
went
>>
>> >through that with the earliest version of bibframe that didn't seem
to
>>
>> >put things at the correct bibliographic level. A lot got fixed, it
>>
>> >seems. However, it's hard to judge the model when the execution
brings
>>
>> >up questions, and when the model is defined in just a few sentences.
>>
>> >(Note: schema.org has many of the same problems, but there's a large
>>
>> >community that discusses them so one has hope that they'll
eventually
>>
>> be
>>
>> >worked out.)(Also note: FRBR has this same problem with its user
tasks,
>>
>> >that are covered in one paragraph each, and to me are totally
vague.)
>>
>> >
>>
>> >Admittedly, FRBRoo is much more rigorous. That said, it needs
something
>>
>> >like the BF-lite presentation to make it understandable. The best
thing
>>
>> >about BF-lite is its web site organization and presentation.
>>
>> >
>>
>> >Also, shouldn't we be creating standards using methods like are used
by
>>
>> >W3C and IETF - with open communities, wikis, mailing list archives,
>>
>> open
>>
>> >documents? That doesn't mean that organizations develop a standard
and
>>
>> >then post it online, it means that the PROCESS needs to be visible
so
>>
>> >that people can participate, or at least understand the end result.
>>
>> It's
>>
>> >very hard to understand a standard if you haven't seen what was
>>
>> >discussed, what was dismissed, what the thinking was. We're way
behind
>>
>> >others in our standards process.
>>
>> >
>>
>> >kc
>>
>> >[1]
>>
>> >https://redlibrarian.github.io/article/2017/02/01/library-systems-
>>
>> disaster.html
>>
>> >[2] http://bibfra.me/
>>
>> >
>>
>> >On 2/2/17 12:24 PM, Simon Spero wrote:
>>
>> >> On Feb 2, 2017 7:21 AM, "Gordon Dunsire" <[log in to unmask]
>>
>> >> <mailto:[log in to unmask]>> wrote:
>>
>> >>
>>
>> >> "I do not understand why RDA cataloging examples and
>>
>> implementations
>>
>> >> have not picked up Bibframe as a prerequisite. They seem like
not
>>
>> >> being made for each other, which is confusing and kind of
>>
>> bizarre.":
>>
>> >> I think the second point is answered earlier in the paragraph:
>>
>> "It
>>
>> >> is so simple that it even does not follow FRBR ..."
>>
>> >>
>>
>> >> There are other reasons why RDA does not regard BIBFRAME as a
>>
>> >> prequisite:
>>
>> >>
>>
>> >> It is not stable.____
>>
>> >>
>>
>> >> Its functional requirements are unclear.
>>
>> >>
>>
>> >> Quite.
>>
>> >>
>>
>> >> To the extent that BIBFRAME's functional requirements /are/ clear,
>>
>> your
>>
>> >> remarks above are not signs of success. Remember that the goal of
the
>>
>> >> bibframe effort was set by the LC report on the RDA test, and it's
>>
>> >> purpose was to establish a non MARC based approach for carrying
RDA
>>
>> >> data. The report did not call for establishing a new conceptual
>>
>> model,
>>
>> >> and this may have been unwise, and contributed to the instability
>>
>> noted.
>>
>> >>
>>
>> >> A different starting point would have been to start from the
basis
>>
>> of
>>
>> >> FRBRoo, which /is/ a rigorously defined FRBR based model, and
define
>>
>> any
>>
>> >> simplified or extended ontology in alignment with that. Such an
>>
>> approach
>>
>> >> would also consider and make explicit the functions that a less
>>
>> record
>>
>> >> based approach could benefit, and what sort of enabling workflows,
>>
>> >> infrastructure, and architecture might be needed to support those
>>
>> goals.
>>
>> >>
>>
>> >> Simon
>>
>> >
>>
>> >--
>>
>> >Karen Coyle
>>
>> >[log in to unmask] http://kcoyle.net
>>
>> >m: +1-510-435-8234
>>
>> >skype: kcoylenet/+1-510-984-3600
>>
>>
>=======================================================================
>>
>> ==
>>
>>
>
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