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I share Robert Maxwell's doubts about the workability of the notion of
representative expressions.  Another practical issue--most systems select
what authority records to include based on matches with bib records in the
collection.  The representative expression may not match with any of the
expressions held by the library.  In that case, the contextualizing
information which the representative expression is intended to convey to
users won't be included in the catalog.  I second Bob's preference for
having such useful contextual information included among work attributes,
not relegated to the description of a particular expression of the work.

My thanks too for all the thought and effort that went into the FRBR-LRM
report.

Stephen

On Wed, Mar 23, 2016 at 7:37 PM, Robert Maxwell <[log in to unmask]>
wrote:

> I think I understand the desire for “representative expression” as an
> attribute of the expression entity, but I have questions about its
> presentation in FRBR-LRM. I assume the concept is “the expression most
> people think of when they think of the work,” and perhaps is based on a
> desire in the cataloging community to give preferential treatment to and
> record things like the first language a work was expressed in (for textual
> works). The document speaks of this in terms of a “canonical” expression.
>
> That’s all well and good, but I’m not sure FRBR-LRM explains very clearly
> how this is supposed to work. It states “The model does not prescribe the
> criteria that must be applied in making the determination of
> representivity” and “Whether an expression is the original expression
> [meaning the representative expression, though the document states earlier
> that the original expression is not necessarily the representative
> expression] of the work will often be a component of this decision-making
> process.” A response might be that FRBR-LRM is a model and it’s up to codes
> to work out the details. But even a model needs some sort of framework.
>
> On the apparent presumption that the original expression is most likely
> the representative expression, for textual and most other kinds of works
> “the” original expression is almost never the expression a librarian (or
> user) has in hand—unless the librarian happens to be holding the author’s
> original manuscript, which is a different expression from that contained in
> the first published manifestation since there are always differences
> between the manuscript and publication. In my experience I’ve probably
> never touched an item containing “the” original expression of any work I
> have cataloged. So talking in terms of “the original expression” might not
> too useful.
>
> To get specific, when describing the work the Iliad, which is the
> representative expression? Well, let’s start with Greek expressions, those
> in the language Homer is presumed to have composed the work using. There
> are hundreds if not thousands of published editions of Greek expressions of
> the Iliad. All have different texts. Is one of them going to be chosen as
> the representative expression? How? Or what about one of the thousands of
> manuscripts? These are all different expressions because they all contain
> different texts. Is one of those the representative expression? Which one?
> This situation exists with any author who wrote before the modern period,
> and it exists for many modern writers as well (e.g. James Joyce). The idea
> of picking one “expression” as the “representative expression” seems
> fraught with difficulty. Perhaps it is not prudent to introduce this notion
> into the model until it is clearer how it might work, if at all.
>
>
>
> Also, a practical implementation question (which has nothing to do with
> MARC). The attribute “representativity” (LRM-A5) is given as a “yes-no”
> proposition: an expression is either the representative expression or it is
> not. Presumably there can only be one representative expression of a work.
> But in a given system, particularly a cooperative system, how would this
> work out? When a cataloger or other metadata professional is preparing a
> description of a work and expression and having a look in the ER database
> is the “representative” expression going to stand out somehow? What would
> prevent folks from describing more than one expression within the same
> database as the representative expression? One possible response could be
> in a linked data environment it doesn’t matter if more than one expression
> is designated as the representative expression. That seems dubious to me,
> but if so, what’s the point, then?
>
>
>
> I’d be interested to know if the approach of considering this sort of
> information as attributes of the work was considered by the authors, and if
> so, why they chose the route of representative expression rather than
> attributes of work. The attributes of expression marked with an asterisk
> (which denotes those that are linked to the representative expression)
> could remain as expression attributes, but narrower versions could appear
> as work attributes with names such as “original (or canonical) intended
> audience”, “original (or canonical) language”, “original (or canonical)
> key”, “original (or canonical) medium of performance”, “original (or
> canonical) scale”. The model as given could be seen as simpler, but it
> could also be reasonably seen as simpler to dispense with the
> judgment-laden decision about which is “the” representative expression and
> instead make these “canonical” attributes attributes of the work. I
> recommend that this might be a better way to go.
>
>
>
> By the way, when a document makes assertions such as “research with users
> indicates that they recognize that works have original or “canonical”
> expressions” (p. 62) it is not unreasonable to expect the paper at least to
> cite (if not summarize) that research.
>
>
>
> Bob
>
>
>
> Robert L. Maxwell
> Ancient Languages and Special Collections Librarian
> 6728 Harold B. Lee Library
> Brigham Young University
> Provo, UT 84602
> (801)422-5568
>
> "We should set an example for all the world, rather than confine ourselves
> to the course which has been heretofore pursued"--Eliza R. Snow, 1842.
>
>
>



-- 
Stephen Hearn, Metadata Strategist
Data Management & Access, University Libraries
University of Minnesota
160 Wilson Library
309 19th Avenue South
Minneapolis, MN 55455
Ph: 612-625-2328
Fx: 612-625-3428
ORCID:  0000-0002-3590-1242