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Re: Music use case

From: RaphaŽl Troncy <Raphael.Troncy@cwi.nl>
Date: Tue, 25 Jul 2006 11:28:39 +0200
Message-ID: <44C5E447.4D2AF02F@cwi.nl>
To: Giovanni Tummarello <g.tummarello@gmail.com>
CC: Jacco van Ossenbruggen <Jacco.van.Ossenbruggen@cwi.nl>, MMSem public <public-xg-mmsem@w3.org>

Hi Giovanni,

> Hi Jacco, thanks for the comment, yes we'll put Mary in it. With the
> term sensible we didnt mean to give a judgement but rather we meant
> "meaningful", "non trivial", "effective" . Your form is much better
> anyway.. so we'll change as soon as technically possible (no write
> access for us yet..) .

As you agree, I have modified the wiki page of your use case.
Result in: http://www.w3.org/2005/Incubator/mmsem/wiki/Music_Use_Case

We are still working with Jeff on giving you the write permission on the
wiki pages. As you have seen, since you're not yet listed in the
participants of the XG, you don't have write access on the pages. This
situation will automatically change when you will be listed in the
participants (that is when you will have been nominated as representant
of this group when Ancona will be W3C member). For the time being, W3C is
trying to provide Jeff and me the possibility to grant access to known
wiki users outside of the XG participants (like you). I hope they will
come with a solution soon. Jeff, do you know the status of our request ?

> What do we do now? should we try to start writing a solutions for the
> use case?

You can certainly think about one or more solution(s) to this use case,
but I will encourage to expand this first draft to better explain what
are the problem(s). For example, several comments have been made to this
use case:
    - link to the lyrics not made so far ...
    - link with video clip to be considered or not by this use case ?.
Then, try to report all the various metadata standards that could be used
and give examples:
    - ID3 tags in XML ? in RDF ?
    - A lyrics markup language already exist or not ?
    - Various possibilities for identifying album ? tracks ? excerpts of
tracks ? Does the temporal URI do the job ?

Ideally, you should show how currently all that can be done (mainly in
XML:-( and how difficult it is to combine these formats ...
Then show how RDF (and SW technologies) can help. Make conversion tools
if necessary! Make a small ontology if necessary!

You may want to model the distinction between a Work, an Expression, a
Manifestation and a Item like it is done in the FRBR model and
methodology (Functional Requirements for Bibliographic Records (FRBR)
[1]). Actually, this model defines the four basic notions: Work,
Expression, Manifestation, Item that can be linked as: a Work isRealized
through Expression that
isEmbodied in a Manifestation that isExemplified by Item. To give a more
concrete example, you may consider a particular Classical Music Work of
J. S. Bach ("Six suites for unaccompanied cello"), the various
performances of this work as
the performances by Janos Starker recorded in 1963 and 1965 (Expression),
the various Manifestations of these recordings (released on 33 1/3 rpm
sound discs in 1965 by Mercury or re-released on compact disc in 1991 by
Mercury) and finally particular Items (the CDs you bought on your
favorite Amazone/Virgin store).

Hope it helps.


[1] IFLA. Functional Requirements for Bibliographic Records, UBCIM
Publications – New Series Vol 19

RaphaŽl Troncy
CWI (Centre for Mathematics and Computer Science),
Kruislaan 413, 1098 SJ Amsterdam, The Netherlands
e-mail: raphael.troncy@cwi.nl & raphael.troncy@gmail.com
Tel: +31 (0)20 - 592 4093
Fax: +31 (0)20 - 592 4312
Web: http://www.cwi.nl/~troncy/
Received on Tuesday, 25 July 2006 09:28:59 UTC

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