- From: Miles, AJ \(Alistair\) <A.J.Miles@rl.ac.uk>
- Date: Wed, 21 Mar 2007 11:31:24 -0000
- To: "SWD WG" <public-swd-wg@w3.org>
- Cc: <public-esw-thes@w3.org>
<http://www.w3.org/2006/07/SWD/wiki/SkosDesign/ProposalForm?action=recal l&rev=15> Sorry, trying to sort out problems with line breaks in email breaking up URLs. > -----Original Message----- > From: public-swd-wg-request@w3.org > [mailto:public-swd-wg-request@w3.org] On Behalf Of Miles, AJ > (Alistair) > Sent: 21 March 2007 11:15 > To: SWD WG > Cc: public-esw-thes@w3.org > Subject: [SKOS] Proposal Form (was: RE: AW: [SKOS] Proposed > Resolution for ISSUE 26: RelationshipBetweenLabels) > > > Hi all, > > I've thought a bit more about making proposals for SKOS, and > I've written up the following: > > <http://www.w3.org/2006/07/SWD/wiki/SkosDesign/ProposalForm?ac > tion=recal > l&rev=15> > > I'd like to offer this as a suggested format for structuring > proposals. > It's the same as what I suggested below, except for the > addition of a section to describe syntactic constraints and a > section for discussion. > > I'm basically trying to ensure that proposals contain all the > information that would be required by a normative > specification of SKOS. > This should enable us to directly and precisely compare > alternative proposals. This would also mean that, once a > proposal is accepted, it can simply be added directly to a > draft of the normative specification, because all the > necessary information is already present. > > Cheers, > > Alistair. > > -- > Alistair Miles > Research Associate > CCLRC - Rutherford Appleton Laboratory > Building R1 Room 1.60 > Fermi Avenue > Chilton > Didcot > Oxfordshire OX11 0QX > United Kingdom > Web: http://purl.org/net/aliman > Email: a.j.miles@rl.ac.uk > Tel: +44 (0)1235 445440 > > > -----Original Message----- > > From: public-swd-wg-request@w3.org > > [mailto:public-swd-wg-request@w3.org] On Behalf Of Miles, AJ > > (Alistair) > > Sent: 19 March 2007 17:14 > > To: SWD WG > > Cc: public-esw-thes@w3.org > > Subject: RE: AW: [SKOS] Proposed Resolution for ISSUE 26: > > RelationshipBetweenLabels > > > > > > Hi all, > > > > I'd like to suggest a structure for making proposals. The structure > > should help us avoid arguing at cross-purposes, by forcing > us to make > > our assumptions explicit. It should also help us to investigate in > > detail the possible consequences of any specific proposal > for software > > applications, enabling us to make a highly informed decision. > > > > One of the points I'd like to make about the argument between the > > various design patterns laid out in [6] is that there are in fact > > *many possible proposals* within each design pattern, each of which > > may have *radically different semantics*. It only really > makes sense > > to argue for or against a *specific proposal* for which all the > > details are given as illustrated below. > > > > (Using Guus' original proposal [1] as an example...) > > > > First, give the vocabulary of the proposal, e.g.: > > > > skos:LabelRelation skos:labelRelationSubject > skos:labelRelationObject > > > > Second, give axiomatic triples using RDF and RDFS > vocabularies, e.g.: > > > > skos:labelRelationSubject rdfs:domain skos:LabelRelation. > > skos:labelRelationSubject rdfs:range rdfs:Literal. > > skos:labelRelationObject rdfs:domain skos:LabelRelation. > > skos:labelRelationObject rdfs:range rdfs:Literal. > > > > Third, give any further semantic conditions on the > interpretation of > > the vocabulary, that cannot be expressed as axiomatic triples. > > Semantic conditions should be given formally, following the > style used > > in *yellow > > tables* in [2] (see e.g. the yellow table at [3]). E.g.: > > > > (None required for Guus' original proposal [1].) > > > > Fourth, give examples of consistent usage. E.g.: > > > > --- Begin Turtle --- > > > > @prefix ex: <http://www.example.com/example#>. > > # skos: rdfs: rdf: conventional namespace prefixes > > > > # first extend proposed vocabulary > > > > ex:AbbreviationRelation rdfs:subClassOf skos:LabelRelation. > > > > # now apply extended vocab > > > > ex:A a skos:Concept; > > skos:prefLabel "Corporation"@en; > > skos:altLabel "Corp."@en. > > > > [] a ex:AbbreviationRelation; > > skos:labelRelationSubject "Corporation"@en; > > skos:labelRelationObject "Corp."@en. > > > > --- End Turtle --- > > > > Fifth, give examples of inconsistent usage, e.g.: > > > > (None possible for Guus' original proposal [1].) > > > > Sixth, give any additional entailment rules which follow from the > > semantic conditions specified above, following the style > used in [5]. > > E.g.: > > > > (None for Guus' original proposal [1].) > > > > Cheers, > > > > Alistair. > > > > > > [1] http://lists.w3.org/Archives/Public/public-swd-wg/2007Feb/0181 > > [2] http://www.w3.org/TR/2004/REC-rdf-mt-20040210/ > > [3] http://www.w3.org/TR/2004/REC-rdf-mt-20040210/#rdfs_interp > > [4] http://www.dajobe.org/2004/01/turtle/ > > [5] http://www.w3.org/TR/2004/REC-rdf-mt-20040210/#rules > > [6] > > http://www.w3.org/2006/07/SWD/wiki/SkosDesign/RelationshipsBet > > weenLabels > > > > -- > > Alistair Miles > > Research Associate > > CCLRC - Rutherford Appleton Laboratory Building R1 Room 1.60 Fermi > > Avenue Chilton Didcot Oxfordshire OX11 0QX United Kingdom > > Web: http://purl.org/net/aliman > > Email: a.j.miles@rl.ac.uk > > Tel: +44 (0)1235 445440 > > > > > -----Original Message----- > > > From: public-swd-wg-request@w3.org > > > [mailto:public-swd-wg-request@w3.org] On Behalf Of Antoine Isaac > > > Sent: 01 March 2007 18:16 > > > To: Guus Schreiber > > > Cc: Jon Phipps; Daniel Rubin; SWD WG > > > Subject: Re: AW: [SKOS] Proposed Resolution for ISSUE 26: > > > RelationshipBetweenLabels > > > > > > > > > Hi Guus, > > > > > > This is seducing from a modelling point of view. However, > > wouldn't it > > > give a(nother) fatal blow to the OWL-DL compatibility? > > > In such a setting, prefLabel could be used to point at > resources or > > > literals, and would violate the constraint disjointness between > > > datatype and object properties. > > > > > > Unless we live happily with that, and decide to make a > > choice for an > > > OWL-DL compatible version of SKOS. But this raises again > > the issue of > > > having several versions of SKOS... > > > > > > Cheers, > > > > > > Antoine > > > > > > > > > > > > > > > > > > > Jon Phipps wrote: > > > > > > > >> Hi Antoine, > > > >> > > > >> Yes. > > > > > > > > > > > > I had an amendment of this third proposal in mind. Instead > > > of having > > > > two properties skos:prefTerm and skos:prefLabel, I would > > suggest to > > > > have just the current one, skos:prefLabel, and removing > the range > > > > restriction (rdfs:literal). So, this means that if one > > > queries for the > > > > the skos:prefLabel of a concept, one either gets a literal or a > > > > resource with a label equal to this literal. This prevents > > > the use of > > > > construction rules and keeps the SKOS vocabulary > simple. The only > > > > extension to the current SKOS vocabulary would a a class > > skos:Term. > > > > > > > > In retrospect, skos:prefTerm might have been a better name than > > > > skos:prefLabel, but I propose to stick with the > original name for > > > > backward-compatibility reasons. > > > > > > > > Guus > > > > > > > > PS The same holds of course for skos:altLabel. > > > > > > > >> > > > >> And just to tie in last week's discussion that resulted in > > > that page > > > >> [1], here's a link to the last message in that thread... > > > >> > > http://lists.w3.org/Archives/Public/public-swd-wg/2007Feb/0167.html > > > >> > > > >> --Jon > > > >> > > > >> On 3/1/07, Antoine Isaac <aisaac@few.vu.nl> wrote: > > > >> > > > >>> Hi, > > > >>> > > > >>> Just a small question. > > > >>> Is this alternative solution you are discussing similar > > > to the third > > > >>> solution I had put in [1]? > > > >>> > > > >>> Antoine > > > >>> > > > >>> [1] > > > >>> > > > http://www.w3.org/2006/07/SWD/wiki/SkosDesign/RelationshipsBet > > > weenLabels > > > >>> > > > >> > > > > > > > > > > > > > > > > > > >
Received on Wednesday, 21 March 2007 11:31:37 UTC