Re: [CODE4LIB] Variations/FRBR project releases FRBR XML Schemas

2010-03-22 Thread Beacom, Matthew
Karen,

This is fun, but I ought to be working.

Me> Work is not defined in AACR or AACR2.

Karen> "Uniform title. 1. The particular title by which a work that has  
appeared under varying titles is to be identified for cataloguing  
purposes." (AACR2)

"The title of the work is the word, phrase, or group of characters  
naming the work. There may be one or more titles associated with a  
work. If the work has appeared under varying titles (differing in  
form, language, etc.), a bibliographic agency normally selects one of  
those titles as the basis of a ?uniform title? for purposes of  
consistency in naming and referencing the work." (FRBR_2008.pdf)

Work isn't defined (neither are any of WEMI), but the uniform title  
was/is a title representing the work. (And not to be confused with the  
uniform title *heading*, which is a uniform title plus qualifiers,  
like language, edition, etc. -- which seems to be something like an  
expression.)

Me> Right. Uniform title is defined. Work is mentioned, but remains undefined. 
Thus, one reason for remaking AACR2 into RDA: to formally define basic concepts 
and work on from those concepts.

Karen> I believe that author/uniform title authority records are being  
considered representations of works in some quarters (e.g.  
www.fla.fi/frbr05/McCallumTEXT.pdf).

Me> Right. MARC/AACR2 A/UT authority information works well as a de facto work 
authority record. If one extends this a bit, it works well for expressions, 
too. It could work fairly well for music, serials, certain "classic" textual 
works, maybe some other things in which UTs are well-established and 
appreciated.

Karen>  In the Work entity, there is a title field, which is the title of the  
Work. So in the case of our Moby Dick, what would be the title of the  
Work? If you have different Works that represent, say, an 1852  
edition, a 1997 edition with a preface by Smith, and another that is a  
2003 edition with a preface by Jones, would they have the same work  
title? but different Work entity identifiers?

Me> Not right. They [the edited works that include the work Moby Dick along 
with other works such as introductions, etc.] would have different work titles 
and different identifiers. And if the editors did any editing of the text of 
Moby Dick itself, then they'd contain different expressions of Moby Dick, too 
(unless their work as editors of the text was too insignificant to be concerned 
about.) 

Using in a general way the example of MARC/AACR2 authority records for an 
authority + uniform title, you'd create records that asserted the existence of 
the work entities, provide a unique number to identify the entity, a name or 
names for human usability, additional information to make the assertion itself 
clearly. You'd have one for Melville's Moby Dick. Another for each of the named 
editions you want to identify as aggregated works. (The number of situations in 
which this will be valuable will be few, but those few time may be important to 
the communities that most often use these works. And one could just associate 
these particular aggregated works (editions of a work with relevant apparatus) 
at the manifestation level. I believe this is the position, more or less, of 
the other IFLA discussion paper, the Aggregates as Manifestations, the O'Neill 
& Žumer Proposal:  
http://www.ifla.org/files/cataloguing/frbrrg/aggregates-as-manifestations.pdf

The argument for this is that there is no pressing need for any other, richer 
association. No need to create work records for _these_ aggregates.  I think 
that is right in almost all cases. But in some cases it may make sense to group 
the pieces together under a new aggregate work.  

Nice talking with you.

Matthew


Re: [CODE4LIB] Variations/FRBR project releases FRBR XML Schemas

2010-03-22 Thread Karen Coyle

Quoting "Beacom, Matthew" :





Work is not defined in AACR or AACR2.


"Uniform title. 1. The particular title by which a work that has  
appeared under varying titles is to be identified for cataloguing  
purposes." (AACR2)


"The title of the work is the word, phrase, or group of characters  
naming the work. There may be one or more titles associated with a  
work. If the work has appeared under varying titles (differing in  
form, language, etc.), a bibliographic agency normally selects one of  
those titles as the basis of a ?uniform title? for purposes of  
consistency in naming and referencing the work." (FRBR_2008.pdf)


Work isn't defined (neither are any of WEMI), but the uniform title  
was/is a title representing the work. (And not to be confused with the  
uniform title *heading*, which is a uniform title plus qualifiers,  
like language, edition, etc. -- which seems to be something like an  
expression.)


I believe that author/uniform title authority records are being  
considered representations of works in some quarters (e.g.  
www.fla.fi/frbr05/McCallumTEXT.pdf).


In the Work entity, there is a title field, which is the title of the  
Work. So in the case of our Moby Dick, what would be the title of the  
Work? If you have different Works that represent, say, an 1852  
edition, a 1997 edition with a preface by Smith, and another that is a  
2003 edition with a preface by Jones, would they have the same work  
title? but different Work entity identifiers?


kc



RDA, well, I only replied to your point about the FRBR WEMI/IMEW   
model being read in both directions. There are a lot of implications  
 for RDA, but I didn't address any of them. I really don't know   
enough about the current state of RDA to express a useful opinion.   
So I didn't.


I think the model I described clearly does allow for the sort of   
grouping of entities under a work heading that is represented by the  
 openlibrary catalog or OCLC's FictionFinder, which is roughly   
similar in the organization of display: work level information, then  
 list of manifestations. I'd prefer a tree structure with work level  
 information showing the work requested and a path to related works   
that are derived but considered new works such as dramas, movies,   
video games based on the work, and a path to expressions of the   
work--in this case that would be by language of translation or   
significant (i.e. scholarly) editions, then manifestations that   
relate to the identified expressions. Additionally, I'd like to see   
pathways to discover additional content that is popularly associated  
 with the work; a good example of that would be illustrations.   
Faceted browse tools would work well with this. And since desires   
have no end, I'd also like to see pathways that lead to other relat!
 ed works that are dependent on the work but are in a relation of   
commentary on the work--books and articles about Moby Dick. Neither   
openlibrary or FictionFinder do any of this now. But now I am no   
longer talking about just the WEMI/IMEW model. And I'll stop.


Matthew Beacom


-Original Message-
From: Code for Libraries [mailto:code4...@listserv.nd.edu] On Behalf  
 Of Karen Coyle

Sent: Monday, March 22, 2010 1:22 PM
To: CODE4LIB@LISTSERV.ND.EDU
Subject: Re: [CODE4LIB] Variations/FRBR project releases FRBR XML Schemas

Quoting "Beacom, Matthew" :


Karen,

You said:




From the FRBR model we know that a manifestation is the embodiment
of an expression. From the manifestation, we infer another level of
thinking about the item in hand, another abstraction, the FRBR
expression. Going up the IMEW ladder, we see there is no gap where
the expression should be. The expression is simply an inference we
make from the manifestation according to the model. It's a
formality. According to the model, an expression for the
augmented/supplemented/whatevered Moby Dick exists. It must.  And
from the expression, let's call it "Moby Dick+a E", we infer the
work, "Moby Dick+a W", again, according to the model. So working up
the IMEW model, we see the augmented/supplemented/whatevered Moby
Dick that I'm calling "Moby Dick+a" is a work, an expression, a
manifestation and item.


I'll have to read through this a few more times, but this puts you in
the "work of works" camp:
http://www.ifla.org/en/events/frbr-working-group-on-aggregates

Unfortunately, I don't think this serves the user well, who may be
looking for "Moby Dick" and not "Moby Dick+a". It's also not how Work
is defined in AACR or RDA. So I'd like to understand what the user
would see having done a search on Moby Dick. It seems like they'd see
what we have today, which is a long list of different versions.
Personally, I'd rather see something like:
   http://upstream.openlibrary.org/works/OL102749W/Moby_Dick
And I don't think your model allows that.

kc





Coming down the WEMI model, we skipped over the expression level.
Why? I think it is because of a couple of thing

Re: [CODE4LIB] Variations/FRBR project releases FRBR XML Schemas

2010-03-22 Thread Beacom, Matthew
Karen,

You said: 

"Unfortunately, I don't think this serves the user well, who may be  
looking for "Moby Dick" and not "Moby Dick+a". It's also not how Work  
is defined in AACR or RDA. So I'd like to understand what the user  
would see having done a search on Moby Dick. It seems like they'd see  
what we have today, which is a long list of different versions.  
Personally, I'd rather see something like:
   http://upstream.openlibrary.org/works/OL102749W/Moby_Dick
And I don't think your model allows that."

A couple of things.  The possibility for confusion is why you have to denote 
both "Moby Dick" and "Moby Dick+a" and any other combinations that include 
"Moby Dick" in terms of the WEMI model. If you one and not the other or 
piggy-back one to the other, then it'll be hopeless for the user and the 
cataloger. No one will make any sense of it.

Work is not defined in AACR or AACR2. 

RDA, well, I only replied to your point about the FRBR WEMI/IMEW model being 
read in both directions. There are a lot of implications for RDA, but I didn't 
address any of them. I really don't know enough about the current state of RDA 
to express a useful opinion. So I didn't. 

I think the model I described clearly does allow for the sort of grouping of 
entities under a work heading that is represented by the openlibrary catalog or 
OCLC's FictionFinder, which is roughly similar in the organization of display: 
work level information, then list of manifestations. I'd prefer a tree 
structure with work level information showing the work requested and a path to 
related works that are derived but considered new works such as dramas, movies, 
video games based on the work, and a path to expressions of the work--in this 
case that would be by language of translation or significant (i.e. scholarly) 
editions, then manifestations that relate to the identified expressions. 
Additionally, I'd like to see pathways to discover additional content that is 
popularly associated with the work; a good example of that would be 
illustrations. Faceted browse tools would work well with this. And since 
desires have no end, I'd also like to see pathways that lead to other relat!
 ed works that are dependent on the work but are in a relation of commentary on 
the work--books and articles about Moby Dick. Neither openlibrary or 
FictionFinder do any of this now. But now I am no longer talking about just the 
WEMI/IMEW model. And I'll stop.
 
Matthew Beacom


-Original Message-
From: Code for Libraries [mailto:code4...@listserv.nd.edu] On Behalf Of Karen 
Coyle
Sent: Monday, March 22, 2010 1:22 PM
To: CODE4LIB@LISTSERV.ND.EDU
Subject: Re: [CODE4LIB] Variations/FRBR project releases FRBR XML Schemas

Quoting "Beacom, Matthew" :

> Karen,
>
> You said:

>
> From the FRBR model we know that a manifestation is the embodiment   
> of an expression. From the manifestation, we infer another level of   
> thinking about the item in hand, another abstraction, the FRBR   
> expression. Going up the IMEW ladder, we see there is no gap where   
> the expression should be. The expression is simply an inference we   
> make from the manifestation according to the model. It's a   
> formality. According to the model, an expression for the   
> augmented/supplemented/whatevered Moby Dick exists. It must.  And   
> from the expression, let's call it "Moby Dick+a E", we infer the   
> work, "Moby Dick+a W", again, according to the model. So working up   
> the IMEW model, we see the augmented/supplemented/whatevered Moby   
> Dick that I'm calling "Moby Dick+a" is a work, an expression, a   
> manifestation and item.

I'll have to read through this a few more times, but this puts you in  
the "work of works" camp:  
http://www.ifla.org/en/events/frbr-working-group-on-aggregates

Unfortunately, I don't think this serves the user well, who may be  
looking for "Moby Dick" and not "Moby Dick+a". It's also not how Work  
is defined in AACR or RDA. So I'd like to understand what the user  
would see having done a search on Moby Dick. It seems like they'd see  
what we have today, which is a long list of different versions.  
Personally, I'd rather see something like:
   http://upstream.openlibrary.org/works/OL102749W/Moby_Dick
And I don't think your model allows that.

kc



>
> Coming down the WEMI model, we skipped over the expression level.
> Why? I think it is because of a couple of things common to how we   
> think. First, when we use the WEMI model in this top-down direction,  
>  we tend to reify the abstractions and look for "real" instances of   
> them. Second, when we move down the WEMI model, we deduce the next   
> level from the "evidence" of the one above or evidence from the   
> physical world. Since the abstract levels of the FRBR WEMI model   
> provide no evidence for deduction, and there is no evidence of an   
> expression in the item, and all there is to rely on is the model's   
> claim that "there be expressions here," the

[CODE4LIB] Identities, Terminologies, xID

2010-03-22 Thread Ya'aqov Ziso
Xiaoming,

n...@identities is weekly handled by Ralph. He also proposed a dashboard
prototype below, which may be of use.
l...@terminologies is updated every 6 months, and handled by
http://www.oclc.org/research/activities/termservices/default.htm
The last piece of the puzzle is xID: how often are those files updated?

Ya¹aqov 



On 3/21/10 4:37 PM, "LeVan,Ralph"  wrote:

> I'm open to suggestions, Ya'aqov.
> 
> I've been talking up the idea of some sort of dashboard for our services.
> Display uptime and response time.  It will be tougher to automatically detect
> a database update and report it.  I'll give that some thought for stuff
> running over my software stack.
> 
> This seems like the right forum to solicit other suggestions.  Has anyone done
> this before?  It seems like there ought to be some lists lying around
> somewhere of information that would be helpful to service consumers.
> 
> Ralph
> 
> -Original Message-
> From: Code for Libraries [mailto:code4...@listserv.nd.edu] On Behalf Of Ziso,
> Ya'aqov
> Sent: Sunday, March 21, 2010 1:09 PM
> To: CODE4LIB@LISTSERV.ND.EDU
> Subject: Re: [CODE4LIB] WorldCat Terminologies
> 
> I'm certain that as Ralph indicated, this file has been kept weekly
> up-to-date.
> The html page header will be, eventually, fixed as well to reflect accurately
> the file's last update and its SRU searchability. The fact remains that for
> all: terminologies/identities/xISSN/xISBN >> WC-DEVNET is the customer support
> and quality control.
> 
> We have no other address for maintenance, and possibly OCLC Research's
> dedicated staff lack such address as well. Yes, these experimental services
> reside on OCLC servers.
> 
> Unfortunately, given this customer support model, OCLC Research will be
> constantly put in a defensive position and all we can do is flag problems and
> maintain this loop.
> 
> (unless any of you has an idea for a loophole and, please, bring it on!)
> Ya'aqov
> 
> 
> 
> 
> 
> -Original Message-
> From: Code for Libraries on behalf of Jonathan Rochkind
> Sent: Sun 3/21/2010 12:19 AM
> To: CODE4LIB@LISTSERV.ND.EDU
> Subject: Re: [CODE4LIB] WorldCat Terminologies
>  
> Yeah, the statement that it's a static copy from 2006 would have stopped me in
> my tracks if I had somehow happened accross the page, which I probably
> wouldn't have, but now I've bookmarked it so I might find it again -- but will
> probably forget that it's REALLY up to date even though it says 2006 on it.
> Nice catch Karen.
> 
> Karen, that looks to me like an HTML front-end for an SRU service, I bet it's
> got an SRU api. Which one of these days I'll get around to figuring out how to
> write code for. 
> 
> From: Code for Libraries [code4...@listserv.nd.edu] On Behalf Of Karen Coyle
> [li...@kcoyle.net]
> Sent: Saturday, March 20, 2010 11:29 AM
> To: CODE4LIB@LISTSERV.ND.EDU
> Subject: Re: [CODE4LIB] WorldCat Terminologies
> 
> Quoting "LeVan,Ralph" :
> 
>> > I hate to muddy the waters, but I can't resist here.
>> >
>> > Research also exposes a copy of the LC NAF at
>> > http://alcme.oclc.org/srw/search/lcnaf
>> >
>> > It gets updated every Tuesday night.
> 
> Unfortunately, that page states right up front:
> 
> "A static copy of LC's Name Authority File from February of 2006"
> 
> That might confuse visitors. Maybe a quick revision is in order? :-)
> 
> Also, API access?
> 
> kc
> 
>> >
>> > This is something I've been maintaining for years and is what
>> > Identities points at when you ask to see the NAF record associated
>> > with an Identities record.
>> >
>> > This particular service has none of the linked-data-type bells and
>> > whistles I'm putting into VIAF and Identities, but easily could, if
>> > there was interest.  I believe I've made the indexing on it
>> > consistent with what I do in Identities.
>> >
>> > Looking at the configuration file for the load of this database, I
>> > am omitting records with 100$k, 100$t, 100$v, 100$x or any 130
>> > fields.  I'm sure Ya'aqov (or other similarly expert Authority
>> > Librarian) could tell you why I am omitting them, because I can't
>> > off the top of my head.
>> >
>> > This service is actually running as a long established model of how
>> > similar services should run in Research.  While it is not running on
>> >  a machine operated by our production staff, it is automatically
>> > monitored by them, they have restart procedures in places when the
>> > service becomes unresponsive and problems are escalated by email
>> > when the restart fails to fix the problem. (Those emails come to me
>> > and where they get treated appropriately.)
>> >
>> > Let me know if there are questions about any of this.
>> >
>> > Ralph
>> >
>>> >> -Original Message-
>>> >> From: Code for Libraries [mailto:code4...@listserv.nd.edu] On Behalf Of
>>> >> Ya'aqov Ziso
>>> >> Sent: Friday, March 19, 2010 3:29 PM
>>> >> To: CODE4LIB@LISTSERV.ND.EDU
>>> >> Subject: Re: [CODE4LIB] WorldCat Termi

Re: [CODE4LIB] Variations/FRBR project releases FRBR XML Schemas

2010-03-22 Thread Beacom, Matthew
Karen,

You said:

"How are the WEM of each separate resource here connected? In other  
words, do you have a Work entity defined for "preface" that links to  
an expression entity for "preface", and do they all have identifiers?  
(This really needs a diagram!) It seems like somewhere you need:

(Expression) preface --> expresses --> (Work) preface

That would have to exist outside of this particular description, right?"

Yes. But I think it would look more like this.

(Expression) preface to Moby Dick by named author for Moby Dick+a edition date
 --> expresses --> 
(Work) preface to Moby Dick by named author for Moby Dick+a edition date

I just want to avoid confusing people with a diagram that looks like there may 
be one (work) called preface for all instances of prefaces.

And you would need the same sort of connections for Moby Dick and the poem by 
Hart Crane in this situation. Each work that is contained in the whole work of 
works needs (or can have) the  WEMI structure. And so do the whole work of 
works.  Crane's poem is a work. Melville's novel is a work. Somebody's preface 
to the "Moby Dick+a" work is a work. They all need to be understood as works. 
But we can always make judgments about what we want to bother with. One might 
skip the effort of asserting a work entity for an undistinguished and unsigned 
preface to anything, and in some other case someone else may make that effort.

Matthew Beacom


-Original Message-
From: Code for Libraries [mailto:code4...@listserv.nd.edu] On Behalf Of Karen 
Coyle
Sent: Monday, March 22, 2010 1:52 PM
To: CODE4LIB@LISTSERV.ND.EDU
Subject: Re: [CODE4LIB] Variations/FRBR project releases FRBR XML Schemas

Quoting "Beacom, Matthew" :

>
> Work: Moby Dick with preface, appendices, Hart Crane poem (I'd call   
> this an aggregate work)
>Includes: (Work) preface (by someone)
>Includes: (Work) Poem (by Hart Crane)
>Includes: (Work) Moby Dick (by Herman Melville)
> Expression: Moby Dick with preface, appendices, Hart Crane poem
>Includes: (Expression) preface (by someone)
>Includes: (Expression) Poem (by Hart Crane)
>Includes: (Expression) Moby Dick (by Herman Melville)
> Manifestation: Moby Dick with preface, appendices, Hart Crane poem
>Contains: (Work/Expression) preface (by someone)
>Contains: (Work/Expression) Poem (by Hart Crane)
>Contains: (Work/Expression) Moby Dick (by Herman Melville)

kc

>
> Other expression groups of the above could be those same works   
> translated to French or Russian or Chinese. One could think of   
> others, but they might all get more complicated than straight   
> translation.
>
> Other manifestation groups of the above could be a hard bound deluxe  
>  edition, a hard bound trade edition, a trade paper edition and a   
> mass market edition with the only physical differences being covers   
> and paper quality/size. Add a few proprietary e-versions, if you want.
>
> With regard to RDA, I think you are still working with a more or   
> less traditional catalog model that begins with inventory control of  
>  physical items in a collection (whether tangible or virtual,  
> whether  local or distributed.) The new aspects of RDA enhance our  
> ability to  connect the items to one another at the manifestation,  
> expression  and work levels.
>
> I don't think RDA goes as far as you want it to go. But I'm not sure  
>  there is any other model to follow.  One has to connect  
> abstractions  like work to actual items one can use. A reference to  
> a work without  some linkage to an item that embodies it is a dead  
> end.
>
> Matthew Beacom
>
> -Original Message-
> From: Code for Libraries [mailto:code4...@listserv.nd.edu] On Behalf  
>  Of Karen Coyle
> Sent: Monday, March 22, 2010 1:10 PM
> To: CODE4LIB@LISTSERV.ND.EDU
> Subject: Re: [CODE4LIB] Variations/FRBR project relases FRBR XML Schemas
>
> Quoting Jonathan Rochkind :
>
>> A big mistake, if it means what we think it means, that RDA has decided
>> that a given Manifestation can not contain several Expressions.
>
> I'm not sure they've actually stated that, although that seems to be
> the implication. I think they intend for you to  use the "contains"
> and "contained in" relationship that can apply to any WEMI entity. And
> this is where RDA's implementation of FRBR becomes difficult when I
> try to think of how to present this to the user --
>
> Work: Moby Dick
> Expression: Moby Dick with preface, appendices, Hart Crane poem
>Contains: (Work/Expression) preface
>Contains: (Work/Expression) Hart Crane Poem
> Manifestation: Moby Dick with preface, appendices, Hart Crane poem
>?Contains: preface
>?Contains: Hart Crane Poem
>
> While there may be some logic here, it seems like this just reproduces
> the "unit card" view that we have today, with a manifestation and
> added entries. I don't know what entity the "contains" hangs off of,
> or if it can be related both to the expression and the manifestation.

[CODE4LIB] Reposting - Sorry! Code4Lib Journal Issue 9 now available!

2010-03-22 Thread Carol Bean
Please excuse cross posting, and please feel free to share! :-)


Editorial Introduction – Moving Forward
Carol Bean
http://journal.code4lib.org/articles/2569

Welcoming new editors, and reflecting on the sustainability factor.

A Principled Approach to Online Publication Listings and Scientific Resource
Sharing
Jacquelijn Ringersma, Karin Kastens, Ulla Tschida and Jos van Berkum
http://journal.code4lib.org/articles/2520

The Max Planck Institute (MPI) for Psycholinguistics has developed a service
to manage and present the scholarly output of their researchers. The PubMan
database manages publication metadata and full-texts of publications
published by their scholars. All relevant information regarding a
researcher’s work is brought together in this database, including
supplementary materials and links to the MPI database for primary research
data. The PubMan metadata is harvested into the MPI website CMS (Plone). The
system developed for the creation of the publication lists, allows the
researcher to create a selection of the harvested data in a variety of
formats.

Querying OCLC Web Services for Name, Subject, and ISBN
Ya’aqov Ziso, Ralph LeVan, and Eric Lease Morgan
http://journal.code4lib.org/articles/2481

Using Web services, search terms can be sent to WorldCat’s centralized
authority and identifier files to retrieve authorized terminology that helps
users get a comprehensive set of relevant search results. This article
presents methods for searching names, subjects or ISBNs in various WorldCat
databases and displaying the results to users. Exploiting WorldCat’s
databases in this way opens up future possibilities for more seamless
integration of authority-controlled vocabulary lists into new discovery
interfaces and a reduction in libraries’ dependence on local name and
subject authority files.

Challenges in Sustainable Open Source: A Case Study
Sibyl Schaefer
http://journal.code4lib.org/articles/2493

The Archivists’ Toolkit is a successful open source software package for
archivists, originally developed with grant funding. The author, who
formerly worked on the project at a participating institution, examines some
of the challenges in making an open source project self-sustaining past
grant funding. A consulting group hired by the project recommended that —
like many successful open source projects — they rely on a collaborative
volunteer community of users and developers. However, the project has had
limited success fostering such a community. The author offers specific
recommendations for the project going forward to gain market share and
develop a collaborative user and development community, with more open
governance.

Using Cloud Services for Library IT Infrastructure
Erik Mitchell
http://journal.code4lib.org/articles/2510

Cloud computing comes in several different forms and this article documents
how service, platform, and infrastructure forms of cloud computing have been
used to serve library needs. Following an overview of these uses the article
discusses the experience of one library in migrating IT infrastructure to a
cloud environment and concludes with a model for assessing cloud computing.

Creating an Institutional Repository for State Government Digital
Publications
Meikiu Lo and Leah M. Thomas
http://journal.code4lib.org/articles/2563

In 2008, the Library of Virginia (LVA) selected the digital asset management
system DigiTool to host a centralized collection of digital state government
publications. The Virginia state digital repository targets three primary
user groups: state agencies, depository libraries and the general public.
DigiTool’s ability to create depositor profiles for individual agencies to
submit their publications, its integration with the Aleph ILS, and product
support by ExLibris were primary factors in its selection. As a smaller
institution, however, LVA lacked the internal resources to take full
advantage of DigiTool’s full set of features. The process of cataloging a
heterogenous collection of state documents also proved to be a challenge
within DigiTool. This article takes a retrospective look at what worked,
what did not, and what could have been done to improve the experience.

Wrangling Electronic Resources: A Few Good Tools
Brandy Klug
http://journal.code4lib.org/articles/2634

There are several freely available tools today that fill the needs of
librarians tasked with maintaining electronic resources, that assist with
tasks such as editing MARC records and maintaining web sites that contain
links to electronic resources. This article gives a tour of a few tools the
author has found invaluable as an Electronic Resources Librarian.

CONFERENCE REPORT: Code4Lib 2010
Birong Ho, Banurekha Lakshminarayanan, and Vanessa Meireles
http://journal.code4lib.org/articles/2717

Conference reports from the 5th Code4Lib Conference, held in Asheville, NC,
from February 22 to 25, 2010. The Code4Lib conference is a collective
volunteer effort of the Code4Lib community o

Re: [CODE4LIB] Variations/FRBR project releases FRBR XML Schemas

2010-03-22 Thread Karen Coyle

Quoting "Beacom, Matthew" :



Work: Moby Dick with preface, appendices, Hart Crane poem (I'd call   
this an aggregate work)

   Includes: (Work) preface (by someone)
   Includes: (Work) Poem (by Hart Crane)
   Includes: (Work) Moby Dick (by Herman Melville)
Expression: Moby Dick with preface, appendices, Hart Crane poem
   Includes: (Expression) preface (by someone)
   Includes: (Expression) Poem (by Hart Crane)
   Includes: (Expression) Moby Dick (by Herman Melville)
Manifestation: Moby Dick with preface, appendices, Hart Crane poem
   Contains: (Work/Expression) preface (by someone)
   Contains: (Work/Expression) Poem (by Hart Crane)
   Contains: (Work/Expression) Moby Dick (by Herman Melville)


How are the WEM of each separate resource here connected? In other  
words, do you have a Work entity defined for "preface" that links to  
an expression entity for "preface", and do they all have identifiers?  
(This really needs a diagram!) It seems like somewhere you need:


(Expression) preface --> expresses --> (Work) preface

That would have to exist outside of this particular description, right?

kc



Other expression groups of the above could be those same works   
translated to French or Russian or Chinese. One could think of   
others, but they might all get more complicated than straight   
translation.


Other manifestation groups of the above could be a hard bound deluxe  
 edition, a hard bound trade edition, a trade paper edition and a   
mass market edition with the only physical differences being covers   
and paper quality/size. Add a few proprietary e-versions, if you want.


With regard to RDA, I think you are still working with a more or   
less traditional catalog model that begins with inventory control of  
 physical items in a collection (whether tangible or virtual,  
whether  local or distributed.) The new aspects of RDA enhance our  
ability to  connect the items to one another at the manifestation,  
expression  and work levels.


I don't think RDA goes as far as you want it to go. But I'm not sure  
 there is any other model to follow.  One has to connect  
abstractions  like work to actual items one can use. A reference to  
a work without  some linkage to an item that embodies it is a dead  
end.


Matthew Beacom

-Original Message-
From: Code for Libraries [mailto:code4...@listserv.nd.edu] On Behalf  
 Of Karen Coyle

Sent: Monday, March 22, 2010 1:10 PM
To: CODE4LIB@LISTSERV.ND.EDU
Subject: Re: [CODE4LIB] Variations/FRBR project relases FRBR XML Schemas

Quoting Jonathan Rochkind :


A big mistake, if it means what we think it means, that RDA has decided
that a given Manifestation can not contain several Expressions.


I'm not sure they've actually stated that, although that seems to be
the implication. I think they intend for you to  use the "contains"
and "contained in" relationship that can apply to any WEMI entity. And
this is where RDA's implementation of FRBR becomes difficult when I
try to think of how to present this to the user --

Work: Moby Dick
Expression: Moby Dick with preface, appendices, Hart Crane poem
   Contains: (Work/Expression) preface
   Contains: (Work/Expression) Hart Crane Poem
Manifestation: Moby Dick with preface, appendices, Hart Crane poem
   ?Contains: preface
   ?Contains: Hart Crane Poem

While there may be some logic here, it seems like this just reproduces
the "unit card" view that we have today, with a manifestation and
added entries. I don't know what entity the "contains" hangs off of,
or if it can be related both to the expression and the manifestation.
I need to think about this more, but I don't see how this lets us
provide a non-unit card view for users, which is what I was hoping we
were working toward. Although perhaps the idea is to build that on top
of the unit card view, after taking apart the records... It might wok,
I really want to try to model this. Wish we could get some folks
together for a 1/2 day somewhere and JUST DO IT.

kc




Riley, Jenn wrote:

What the RDA folks (that is, the folks
who have created RDA, the JSC members) said (some of them off-list to
me), is that if your manifestation is an aggregate, then your
Expression must be an equal aggregate. So the Expression is pretty
much one-to-one with the Manifestation. (And I think we were all
seeing a many-to-many.)



I see this conclusion as RDA's, but not FRBR's. The FRBR report explicitly
says there can be a many-to-one relationship between Expressions and a
Manifestation (that is, a Manifestation can embody several   
Expressions), and

the V/FRBR project takes that at face value and does not impose the
additional restriction that a Manifestation contains an equal   
aggregate. RDA

may impose that restriction, but that's their implementation of FRBR, and
the V/FRBR project as *not* an RDA implementation doesn't feel   
bound by that

decision.

Obviously I think that RDA has made a mistake in adding in a requirement
that "if your manifestation is an agg

Re: [CODE4LIB] Variations/FRBR project releases FRBR XML Schemas

2010-03-22 Thread Beacom, Matthew
Karen,

Is see your depiction of the Moby Dick example

Work: Moby Dick
Expression: Moby Dick with preface, appendices, Hart Crane poem
   Contains: (Work/Expression) preface
   Contains: (Work/Expression) Hart Crane Poem
Manifestation: Moby Dick with preface, appendices, Hart Crane poem
   ?Contains: preface
   ?Contains: Hart Crane Poem

This way:

Work: Moby Dick with preface, appendices, Hart Crane poem (I'd call this an 
aggregate work)
   Includes: (Work) preface (by someone)
   Includes: (Work) Poem (by Hart Crane)
   Includes: (Work) Moby Dick (by Herman Melville)
Expression: Moby Dick with preface, appendices, Hart Crane poem
   Includes: (Expression) preface (by someone)
   Includes: (Expression) Poem (by Hart Crane)
   Includes: (Expression) Moby Dick (by Herman Melville)
Manifestation: Moby Dick with preface, appendices, Hart Crane poem
   Contains: (Work/Expression) preface (by someone)
   Contains: (Work/Expression) Poem (by Hart Crane)
   Contains: (Work/Expression) Moby Dick (by Herman Melville)

Other expression groups of the above could be those same works translated to 
French or Russian or Chinese. One could think of others, but they might all get 
more complicated than straight translation.

Other manifestation groups of the above could be a hard bound deluxe edition, a 
hard bound trade edition, a trade paper edition and a mass market edition with 
the only physical differences being covers and paper quality/size. Add a few 
proprietary e-versions, if you want.  

With regard to RDA, I think you are still working with a more or less 
traditional catalog model that begins with inventory control of physical items 
in a collection (whether tangible or virtual, whether local or distributed.) 
The new aspects of RDA enhance our ability to connect the items to one another 
at the manifestation, expression and work levels.

I don't think RDA goes as far as you want it to go. But I'm not sure there is 
any other model to follow.  One has to connect abstractions like work to actual 
items one can use. A reference to a work without some linkage to an item that 
embodies it is a dead end.

Matthew Beacom

-Original Message-
From: Code for Libraries [mailto:code4...@listserv.nd.edu] On Behalf Of Karen 
Coyle
Sent: Monday, March 22, 2010 1:10 PM
To: CODE4LIB@LISTSERV.ND.EDU
Subject: Re: [CODE4LIB] Variations/FRBR project relases FRBR XML Schemas

Quoting Jonathan Rochkind :

> A big mistake, if it means what we think it means, that RDA has decided
> that a given Manifestation can not contain several Expressions.

I'm not sure they've actually stated that, although that seems to be  
the implication. I think they intend for you to  use the "contains"  
and "contained in" relationship that can apply to any WEMI entity. And  
this is where RDA's implementation of FRBR becomes difficult when I  
try to think of how to present this to the user --

Work: Moby Dick
Expression: Moby Dick with preface, appendices, Hart Crane poem
   Contains: (Work/Expression) preface
   Contains: (Work/Expression) Hart Crane Poem
Manifestation: Moby Dick with preface, appendices, Hart Crane poem
   ?Contains: preface
   ?Contains: Hart Crane Poem

While there may be some logic here, it seems like this just reproduces  
the "unit card" view that we have today, with a manifestation and  
added entries. I don't know what entity the "contains" hangs off of,  
or if it can be related both to the expression and the manifestation.  
I need to think about this more, but I don't see how this lets us  
provide a non-unit card view for users, which is what I was hoping we  
were working toward. Although perhaps the idea is to build that on top  
of the unit card view, after taking apart the records... It might wok,  
I really want to try to model this. Wish we could get some folks  
together for a 1/2 day somewhere and JUST DO IT.

kc


>
> Riley, Jenn wrote:
>>> What the RDA folks (that is, the folks
>>> who have created RDA, the JSC members) said (some of them off-list to
>>> me), is that if your manifestation is an aggregate, then your
>>> Expression must be an equal aggregate. So the Expression is pretty
>>> much one-to-one with the Manifestation. (And I think we were all
>>> seeing a many-to-many.)
>>>
>>
>> I see this conclusion as RDA's, but not FRBR's. The FRBR report explicitly
>> says there can be a many-to-one relationship between Expressions and a
>> Manifestation (that is, a Manifestation can embody several Expressions), and
>> the V/FRBR project takes that at face value and does not impose the
>> additional restriction that a Manifestation contains an equal aggregate. RDA
>> may impose that restriction, but that's their implementation of FRBR, and
>> the V/FRBR project as *not* an RDA implementation doesn't feel bound by that
>> decision.
>>
>> Obviously I think that RDA has made a mistake in adding in a requirement
>> that "if your manifestation is an aggregate, then your Expression must be an
>> equal aggrega

[CODE4LIB] Code4Lib Journal - Issue 9 now available!

2010-03-22 Thread Carol Bean
Please excuse cross posting, and please feel free to share! :-)


Editorial Introduction – Moving Forward
Carol Bean
http://journal.code4lib.org/articles/2569

Welcoming new editors, and reflecting on the sustainability factor.

A Principled Approach to Online Publication Listings and Scientific Resource
Sharing
Jacquelijn Ringersma, Karin Kastens, Ulla Tschida and Jos van Berkum
http://journal.code4lib.org/articles/2520

The Max Planck Institute (MPI) for Psycholinguistics has developed a service
to manage and present the scholarly output of their researchers. The PubMan
database manages publication metadata and full-texts of publications
published by their scholars. All relevant information regarding a
researcher’s work is brought together in this database, including
supplementary materials and links to the MPI database for primary research
data. The PubMan metadata is harvested into the MPI website CMS (Plone). The
system developed for the creation of the publication lists, allows the
researcher to create a selection of the harvested data in a variety of
formats.

Querying OCLC Web Services for Name, Subject, and ISBN
Ya’aqov Ziso, Ralph LeVan, and Eric Lease Morgan
http://journal.code4lib.org/articles/2481

Using Web services, search terms can be sent to WorldCat’s centralized
authority and identifier files to retrieve authorized terminology that helps
users get a comprehensive set of relevant search results. This article
presents methods for searching names, subjects or ISBNs in various WorldCat
databases and displaying the results to users. Exploiting WorldCat’s
databases in this way opens up future possibilities for more seamless
integration of authority-controlled vocabulary lists into new discovery
interfaces and a reduction in libraries’ dependence on local name and
subject authority files.

Using Cloud Services for Library IT Infrastructure
Erik Mitchell
http://journal.code4lib.org/articles/2510

Cloud computing comes in several different forms and this article documents
how service, platform, and infrastructure forms of cloud computing have been
used to serve library needs. Following an overview of these uses the article
discusses the experience of one library in migrating IT infrastructure to a
cloud environment and concludes with a model for assessing cloud computing.

Creating an Institutional Repository for State Government Digital
Publications
Meikiu Lo and Leah M. Thomas
http://journal.code4lib.org/articles/2563

In 2008, the Library of Virginia (LVA) selected the digital asset management
system DigiTool to host a centralized collection of digital state government
publications. The Virginia state digital repository targets three primary
user groups: state agencies, depository libraries and the general public.
DigiTool’s ability to create depositor profiles for individual agencies to
submit their publications, its integration with the Aleph ILS, and product
support by ExLibris were primary factors in its selection. As a smaller
institution, however, LVA lacked the internal resources to take full
advantage of DigiTool’s full set of features. The process of cataloging a
heterogenous collection of state documents also proved to be a challenge
within DigiTool. This article takes a retrospective look at what worked,
what did not, and what could have been done to improve the experience.

Wrangling Electronic Resources: A Few Good Tools
Brandy Klug
http://journal.code4lib.org/articles/2634

There are several freely available tools today that fill the needs of
librarians tasked with maintaining electronic resources, that assist with
tasks such as editing MARC records and maintaining web sites that contain
links to electronic resources. This article gives a tour of a few tools the
author has found invaluable as an Electronic Resources Librarian.

CONFERENCE REPORT: Code4Lib 2010
Birong Ho, Banurekha Lakshminarayanan, and Vanessa Meireles
http://journal.code4lib.org/articles/2717

Conference reports from the 5th Code4Lib Conference, held in Asheville, NC,
from February 22 to 25, 2010. The Code4Lib conference is a collective
volunteer effort of the Code4Lib community of library technologists.
Included are three brief reports on the conference from the recipients of
conference scholarships.


-- 
Carol Bean
beanwo...@gmail.com


Re: [CODE4LIB] Variations/FRBR project releases FRBR XML Schemas

2010-03-22 Thread Karen Coyle

Quoting "Beacom, Matthew" :


Karen,

You said:




From the FRBR model we know that a manifestation is the embodiment   
of an expression. From the manifestation, we infer another level of   
thinking about the item in hand, another abstraction, the FRBR   
expression. Going up the IMEW ladder, we see there is no gap where   
the expression should be. The expression is simply an inference we   
make from the manifestation according to the model. It's a   
formality. According to the model, an expression for the   
augmented/supplemented/whatevered Moby Dick exists. It must.  And   
from the expression, let's call it "Moby Dick+a E", we infer the   
work, "Moby Dick+a W", again, according to the model. So working up   
the IMEW model, we see the augmented/supplemented/whatevered Moby   
Dick that I'm calling "Moby Dick+a" is a work, an expression, a   
manifestation and item.


I'll have to read through this a few more times, but this puts you in  
the "work of works" camp:  
http://www.ifla.org/en/events/frbr-working-group-on-aggregates


Unfortunately, I don't think this serves the user well, who may be  
looking for "Moby Dick" and not "Moby Dick+a". It's also not how Work  
is defined in AACR or RDA. So I'd like to understand what the user  
would see having done a search on Moby Dick. It seems like they'd see  
what we have today, which is a long list of different versions.  
Personally, I'd rather see something like:

  http://upstream.openlibrary.org/works/OL102749W/Moby_Dick
And I don't think your model allows that.

kc





Coming down the WEMI model, we skipped over the expression level.
Why? I think it is because of a couple of things common to how we   
think. First, when we use the WEMI model in this top-down direction,  
 we tend to reify the abstractions and look for "real" instances of   
them. Second, when we move down the WEMI model, we deduce the next   
level from the "evidence" of the one above or evidence from the   
physical world. Since the abstract levels of the FRBR WEMI model   
provide no evidence for deduction, and there is no evidence of an   
expression in the item, and all there is to rely on is the model's   
claim that "there be expressions here," then we don't see the   
expression as real. Working up from the item, the step at the   
expression level is more clear and more clearly a formal part of the  
 modeling process. It isn't a different decision about expression,  
it  is a different view of the model that allows us to more clearly  
see  the expression.


Is this way of thinking, useful? It may be, when or if we think the   
editorial work that created the augmented/etc. Moby Dick, is worth   
noting and tracking.  Consider for instance the 150 the anniversary   
edition of Moby Dick published by the Northwestern University Press   
in 1991. It may make sense and provide some utility for readers for   
cataloger's to consider this edition a different work than the   
Norton Critical Edition, 2d edition, of Moby Dick. Because we like   
to relate a work to a creator of the work when we can, I'll point   
out the creator of each of these works is the editor or editorial   
group that edited the text of Moby Dick-if they did that--and   
compiled the edition.  And we might distinguish them by use of the   
editor's name or the publisher's as we do in this case.


Returning to "Moby Dick+a" for a moment, I want to point out a   
complexity that I skipped over so far. There is more than one work   
involved in "Moby Dick+a." The first is the edition itself, "Moby   
Dick+a," a second is "Moby Dick," itself, a third would be the   
introduction written for this edition, etc. It would be possible to   
have the same work/expression of "Moby Dick" in two different   
"edition-works" of Moby Dick. If the same text of "Moby Dick" is   
simply repeated in a new context of apparatus--introductions,   
afterwords, etc., one could have a work/expression "Moby Dick+a" and  
 another "Moby Dick+b" that each contains the same work/expression,   
"Moby Dick." What makes sense to me is noting and tracking both of   
these--the edited augmentation and the core work. Other works within  
 the augmented work may also be worth noting, etc., but how far one   
would follow that path depends on the implementation goals.


Matthew Beacom




--
Karen Coyle
kco...@kcoyle.net http://kcoyle.net
ph: 1-510-540-7596
m: 1-510-435-8234
skype: kcoylenet


Re: [CODE4LIB] Variations/FRBR project relases FRBR XML Schemas

2010-03-22 Thread Karen Coyle

Quoting Jonathan Rochkind :


A big mistake, if it means what we think it means, that RDA has decided
that a given Manifestation can not contain several Expressions.


I'm not sure they've actually stated that, although that seems to be  
the implication. I think they intend for you to  use the "contains"  
and "contained in" relationship that can apply to any WEMI entity. And  
this is where RDA's implementation of FRBR becomes difficult when I  
try to think of how to present this to the user --


Work: Moby Dick
Expression: Moby Dick with preface, appendices, Hart Crane poem
  Contains: (Work/Expression) preface
  Contains: (Work/Expression) Hart Crane Poem
Manifestation: Moby Dick with preface, appendices, Hart Crane poem
  ?Contains: preface
  ?Contains: Hart Crane Poem

While there may be some logic here, it seems like this just reproduces  
the "unit card" view that we have today, with a manifestation and  
added entries. I don't know what entity the "contains" hangs off of,  
or if it can be related both to the expression and the manifestation.  
I need to think about this more, but I don't see how this lets us  
provide a non-unit card view for users, which is what I was hoping we  
were working toward. Although perhaps the idea is to build that on top  
of the unit card view, after taking apart the records... It might wok,  
I really want to try to model this. Wish we could get some folks  
together for a 1/2 day somewhere and JUST DO IT.


kc




Riley, Jenn wrote:

What the RDA folks (that is, the folks
who have created RDA, the JSC members) said (some of them off-list to
me), is that if your manifestation is an aggregate, then your
Expression must be an equal aggregate. So the Expression is pretty
much one-to-one with the Manifestation. (And I think we were all
seeing a many-to-many.)



I see this conclusion as RDA's, but not FRBR's. The FRBR report explicitly
says there can be a many-to-one relationship between Expressions and a
Manifestation (that is, a Manifestation can embody several Expressions), and
the V/FRBR project takes that at face value and does not impose the
additional restriction that a Manifestation contains an equal aggregate. RDA
may impose that restriction, but that's their implementation of FRBR, and
the V/FRBR project as *not* an RDA implementation doesn't feel bound by that
decision.

Obviously I think that RDA has made a mistake in adding in a requirement
that "if your manifestation is an aggregate, then your Expression must be an
equal aggregate." But that's their business, I guess.

Jenn


Jenn Riley
Metadata Librarian
Digital Library Program
Indiana University - Bloomington
Wells Library W501
(812) 856-5759
www.dlib.indiana.edu

Inquiring Librarian blog: www.inquiringlibrarian.blogspot.com




--
Karen Coyle
kco...@kcoyle.net http://kcoyle.net
ph: 1-510-540-7596
m: 1-510-435-8234
skype: kcoylenet


Re: [CODE4LIB] Variations/FRBR project releases FRBR XML Schemas

2010-03-22 Thread Beacom, Matthew
Karen,

You said:

"One thing I am finding about FRBR (and want to think about more) is  
that one seems to come up with different conclusions depending on  
whether one works down from Work or works up from Item. The assumption  
that an aggregate in a bound volume is an Expression seems to make  
sense if you are working up from the Manifestation, but it makes less  
sense if you are working down from the Work. If decisions change based  
on the direction, then I think we have a real problem!"

The direction one moves in with the WEMI/IMEW model doesn't change the result 
of using the model in the way you mean. It doesn't invalidates the model or 
shows a serious problem with the model. It shows that people can often trace 
complexities of relationships in one direction better than they can in another. 
So it is a good practice to use the model in both directions when trying to 
understand it or apply it.  

Let's use your case (more or less) as an example. 

Consider that we have a published work--Moby Dick--that has additional material 
published with it, an introduction, a poem, whatever. That extra material 
published with the work Moby Dick doesn't exist _with_ the text of Moby Dick 
until we descend down WEMI to the manifestation level. Here's one place 
confusion enters.  What happened to the expression?  We just skipped over it. 
As if it didn't exist.  What about the item?  We have that in hand. It exists.  
It's our evidence for the rest. We have analyzed this bibliographic situation 
from W to I, but we have a gap at expression. That's confusing. There may be 
something wrong with the model, but before we investigate that, let's look at 
the situation in reverse, from I to W.

The evidence I have is in my hand. I'm holding the item. It says it is Moby 
Dick, it has an intro and other stuff with a block of text that looks like it 
could be Moby Dick. We'll assume for now that it is. From the item, I infer the 
manifestation. 

(Jonathan and others would very sensibly call this manifestation the set of all 
the more or less interchangeable items, but I prefer to think of it as an 
_idea_ we have about a set of like items. To me, it doesn't make the best sense 
to think of the manifestation as a physical entity--a set; it's more useful to 
think of it as an idea we have about a set of physical entities. This approach 
keeps the focus on the FRBR manifestation as an abstraction. It avoids reifying 
the concept, which, I think, is a source of much confusion about the FRBR WEMI 
model.)

>From the FRBR model we know that a manifestation is the embodiment of an 
>expression. From the manifestation, we infer another level of thinking about 
>the item in hand, another abstraction, the FRBR expression. Going up the IMEW 
>ladder, we see there is no gap where the expression should be. The expression 
>is simply an inference we make from the manifestation according to the model. 
>It's a formality. According to the model, an expression for the 
>augmented/supplemented/whatevered Moby Dick exists. It must.  And from the 
>expression, let's call it "Moby Dick+a E", we infer the work, "Moby Dick+a W", 
>again, according to the model. So working up the IMEW model, we see the 
>augmented/supplemented/whatevered Moby Dick that I'm calling "Moby Dick+a" is 
>a work, an expression, a manifestation and item.  

Coming down the WEMI model, we skipped over the expression level.  Why? I think 
it is because of a couple of things common to how we think. First, when we use 
the WEMI model in this top-down direction, we tend to reify the abstractions 
and look for "real" instances of them. Second, when we move down the WEMI 
model, we deduce the next level from the "evidence" of the one above or 
evidence from the physical world. Since the abstract levels of the FRBR WEMI 
model provide no evidence for deduction, and there is no evidence of an 
expression in the item, and all there is to rely on is the model's claim that 
"there be expressions here," then we don't see the expression as real. Working 
up from the item, the step at the expression level is more clear and more 
clearly a formal part of the modeling process. It isn't a different decision 
about expression, it is a different view of the model that allows us to more 
clearly see the expression.

Is this way of thinking, useful? It may be, when or if we think the editorial 
work that created the augmented/etc. Moby Dick, is worth noting and tracking.  
Consider for instance the 150 the anniversary edition of Moby Dick published by 
the Northwestern University Press in 1991. It may make sense and provide some 
utility for readers for cataloger's to consider this edition a different work 
than the Norton Critical Edition, 2d edition, of Moby Dick. Because we like to 
relate a work to a creator of the work when we can, I'll point out the creator 
of each of these works is the editor or editorial group that edited the text of 
Moby Dick-if they did that--and compil

Re: [CODE4LIB] Variations/FRBR project relases FRBR XML Schemas

2010-03-22 Thread Jonathan Rochkind
A big mistake, if it means what we think it means, that RDA has decided 
that a given Manifestation can not contain several Expressions.


Riley, Jenn wrote:

What the RDA folks (that is, the folks
who have created RDA, the JSC members) said (some of them off-list to
me), is that if your manifestation is an aggregate, then your
Expression must be an equal aggregate. So the Expression is pretty
much one-to-one with the Manifestation. (And I think we were all
seeing a many-to-many.)



I see this conclusion as RDA's, but not FRBR's. The FRBR report explicitly
says there can be a many-to-one relationship between Expressions and a
Manifestation (that is, a Manifestation can embody several Expressions), and
the V/FRBR project takes that at face value and does not impose the
additional restriction that a Manifestation contains an equal aggregate. RDA
may impose that restriction, but that's their implementation of FRBR, and
the V/FRBR project as *not* an RDA implementation doesn't feel bound by that
decision.

Obviously I think that RDA has made a mistake in adding in a requirement
that "if your manifestation is an aggregate, then your Expression must be an
equal aggregate." But that's their business, I guess.

Jenn


Jenn Riley
Metadata Librarian
Digital Library Program
Indiana University - Bloomington
Wells Library W501
(812) 856-5759
www.dlib.indiana.edu

Inquiring Librarian blog: www.inquiringlibrarian.blogspot.com

  


Re: [CODE4LIB] Variations/FRBR project relases FRBR XML Schemas

2010-03-22 Thread Joe Hourcle

On Sun, 21 Mar 2010, Karen Coyle wrote:

One thing I am finding about FRBR (and want to think about more) is that one 
seems to come up with different conclusions depending on whether one works 
down from Work or works up from Item. The assumption that an aggregate in a 
bound volume is an Expression seems to make sense if you are working up from 
the Manifestation, but it makes less sense if you are working down from the 
Work. If decisions change based on the direction, then I think we have a real 
problem!


It's a *reference model*.  People are going to apply it differently, for 
what works in their situation.


It is pointless to assume that we will ever get everyone to agree on a 
single implementation -- it's either too complex and waste's people time 
for stuff they don't care about, or it's not complex enough and doesn't 
handle your special situations and strange edge cases.


Build the system that makese sense for your needs, and use FRBR as 
guidelines on issues to consider, basic requirements, etc.  It is not an 
API spec.  It is not an interchange format.


RDA, on the other hand, is more concrete -- it has specific cataloging 
instructions on how to deal with specific situations.  (and well, in the 
case of aggregates as new expressions without a resultant new work, as 
I've come to understand from this discussion, rules that might not comply 
with FRBR)  With the RDA toolkit, you even have a specific implementation.


...

Maybe my take on the situation is different because I don't deal with 
bibliographic objects.  Technically, by FRBR, I don't even deal with 
Items, as it's all digital.  (and I don't want to try to answer if little 
bits of magnetic film spread across my disk arrays make up an 'Item', as 
then I have to consider things being new Items when my disk array decides 
to move data around because a drive starts to fail)


... as such, there's no way in hell I'm going to be able to mesh my 
resultant catalogs with most other people's catalogs (and to do so, 
wouldn't make sense for the users).  I also have to try to mesh other 
catalogs with our federation, where we just don't have the funding to 
re-catalog every object, so I'm just trying to see how each catalog fits 
within a common model, so I know how to talk to each system and how the 
granularity of their results compares to the results from other systems.


I specifically have to plan for everyone coming up with their own systems; 
some are spectacularly bad.  (A new database table every year or month, so 
we don't hit limits within our database.  Multiple related tables, but not 
actually assigning foreign keys between them.  Over 10k tables, with each 
catalog table storing both current and deprecated data and no way to easy 
way to select just the deprecated data without going through an overly 
cumbersome abstraction interface (which merges in constants as stored in 
other yet other tables) ... and each of the catalog tables has no fixed 
specification.)


...

I'm with Jenn on this -- different groups can set set up their little 
idealized implementations of FRBR, as is being done with RDA, and the 
different groups working on their implementation can ignore them when it 
doesn't fit with their needs.


More concrete systems *are* needed, or we're going to end up with a 
near-infinate number of variations, but some people are going to find it 
easier to deal with a more restrictive model, where they don't have to 
deal with complexity; and others are going to have strange edge cases that 
don't fit within the restrictions that require that same complexity.


The final vote on if people accept the restrictions of RDA will be if they 
decide to adopt it, or if they have to go with some other implementation.


-Joe