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Fwd: Best Practice for Renaming OWL Vocabulary Elements

From: M. Scott Marshall <mscottmarshall@gmail.com>
Date: Sun, 22 May 2011 10:49:15 +0200
Message-ID: <BANLkTikPPLCeV34gqKaheX71L=5dtgzqfg@mail.gmail.com>
To: HCLS <public-semweb-lifesci@w3.org>
Cc: Alan Ruttenberg <alanruttenberg@gmail.com>, Steve Pettifer <steve.pettifer@manchester.ac.uk>
I thought that this thread and Alan's posting to the LOD list is
particularly relevant to identifiers for HCLS. Shared Names has also
had this discussion and there are many in the area of ontology that
find it important to have robust non-human-readable identifiers (that
are much less vulnerable to obsolescence) with corresponding
human-readable labels (used for UI display by tools). This issue is on
the critical path for life science identifiers. Please see Alan's
well-stated summary below.

BTW, Steve Pettifer has provided an illustrative example of a 'same
as' pitfall to OpenPHACTS that would be useful to discuss in a future
LODD telcon (TBA).

Cheers,
Scott

-- 
M. Scott Marshall, W3C HCLS IG co-chair, http://www.w3.org/blog/hcls
http://staff.science.uva.nl/~marshall

---------- Forwarded message ----------
From: Alan Ruttenberg <alanruttenberg@gmail.com>
Date: Fri, Apr 22, 2011 at 7:14 PM
Subject: Re: Best Practice for Renaming OWL Vocabulary Elements
To: Martin Hepp <martin.hepp@ebusiness-unibw.org>
Cc: "semantic-web@w3.org" <semantic-web@w3.org>, "public-lod@w3.org"
<public-lod@w3.org>


Dear Martin,

My advise is to bite the bullet now and once and change all the URIs
to use numerical ids, ridding them of any domain content.

If you have the desire now to change a string you will have it again.
Get rid of the issue now and forever while the semantic web is young.

Aside from the issue you are facing, in my opinion choosing any
particular language (English in this case) in a privileged position in
the URI will be a barrier, perhaps subtle, to global adoption.

The OBO Foundry policy is at http://obofoundry.org/id-policy.shtml
the in case it might be useful. You will see we decided to bite the
bullet (because of another bad design choice) and how we are
documenting it.

-Alan

On Apr 21, 2011, at 5:46 AM, Martin Hepp
<martin.hepp@ebusiness-unibw.org> wrote:

> Dear all:
>
> I am considering to rename a few conceptual elements in the GoodRelations ontology. However, they are already in use in data, queries, and applications. Thus, I am thinking of the least intrusive way of implementing this. I think this question is also relevant for many other OWL vocabularies on the Web.
>
> Attached, please find my proposal. It critically depends on the ability of typical triple-stores to compute basic(*) inferences for
>
> - owl:equivalentProperty for owl:DatatypeProperty and owl:ObjectProperty entities,
> - owl:equivalentClass for pairs of owl:Class and
> - owl:sameAs for pairs of "ontological" instances, e.g. value nodes defined in the vocabulary.
>
> With "basic", I mean that additional triples for the additional class membership or property or instance must be materialized; this could be a subset of the complete theoretical implications.
> As far as I know, Virtuoso does support this to a sufficient degree, but I am unsure about other parts of widely deployed infrastructure.
>
> It would be no problem to express the necessary inferences by means of a SPARQL CONSTRUCT rule or in SPIN.
>
> Please share any suggestions and concerns with me.
>
> Old, but in use:
> ---------------
> foo:LongClassName a owl:Class ;
>    rdfs:label "LongClassName" .
>
> foo:LongPropertyName1 a owl:DatatypeProperty ;
>    rdfs:domain foo:LongClassName ;
>    rdfs:label "LongPropertyName1" .
>
> foo:LongPropertyName2 a owl:ObjectProperty ;
>    rdfs:domain foo:LongClassName ;
>    rdfs:range foo:SomeOtherClass1 ;
>    rdfs:label "LongPropertyName1" .
>
> foo:LongNameIndividual a foo:SomeOtherClass2 ;
>    rdfs:label "LongNameIndividual" .
>
> Now, we want to rename those elements as follows, without breaking old data nor old queries / applications:
>
> foo:LongClassName --> foo:NewClassName
> foo:LongPropertyName1 --> foo:NewPropertyName1
> foo:LongPropertyName2 --> foo:NewPropertyName2
> foo:LongNameIndividual --> foo:NewNameIndividual
>
> Proposal:
> --------
> a) Step 1: Define new classes, properties, individuals and link back to their old variants
>
> foo:NewClassName a owl:Class ;
>    owl:equivalentClass foo:LongClassName .
>    rdfs:label "NewClassName (Note: This was foo:LongClassName previously)" .
>
> foo:NewPropertyName1 a owl:DatatypeProperty ;
>    owl:equivalentProperty foo:LongPropertyName1 ;
>    rdfs:domain foo:NewClassName ;
>    rdfs:label "NewPropertyName1 (Note: This was foo:LongPropertyName1 previously)" .
>
> foo:NewPropertyName2 a owl:ObjectProperty ;
>    owl:equivalentProperty foo:LongPropertyName2 ;
>    rdfs:domain foo:NewClassName ;
>    rdfs:range foo:SomeOtherClass1 ;
>    rdfs:label "NewPropertyName2 (Note: This was foo:LongPropertyName2 previously)" .
>
> foo:NewNameIndividual a foo:SomeOtherClass2 ;
>    owl:sameAs foo:LongNameIndividual ;
>    rdfs:label "NewNameIndividual (Note: This was foo:LongNameIndividual previously)" .
>
> b) Step 2: Deprecate the old elements in OWL 2 style (using owl:deprecated)
> foo:LongClassName a owl:Class;
>    owl:deprecated true;
>    rdfs:label "LongClassName - Deprecated, use foo:NewClassName instead" .
>
> foo:LongPropertyName1 a owl:DatatypeProperty ;
>    owl:deprecated true;
>    rdfs:domain foo:LongClassName ;
>    rdfs:label "LongPropertyName1 - Deprecated, use foo:NewPropertyName1 instead" .
>
> foo:LongPropertyName2 a owl:ObjectProperty ;
>    owl:deprecated true ;
>    rdfs:domain foo:LongClassName ;
>    rdfs:range foo:SomeOtherClass1 ;
>    rdfs:label "LongPropertyName1 - Deprecated, use foo:NewPropertyName2 instead" .
>
> foo:LongNameIndividual a foo:SomeOtherClass2 ;
>    owl:deprecated true ;
>    rdfs:label "LongNameIndividual - Deprecated, use foo:NewNameIndividual instead" .
>
> c) Since the owl:deprecated property is not defined in OWL1, I would also add the following axiom in order to remain within OWL 1 DL:
> #OWL 1 DL compatibility of the OWL2 deprecated property
> owl:deprecated a owl:AnnotationProperty.
>
> Thanks in advance!
>
> Best
>
> Martin
>
> --------------------------------------------------------
> martin hepp
> e-business & web science research group
> universitaet der bundeswehr muenchen
>
> e-mail:  hepp@ebusiness-unibw.org
> phone:   +49-(0)89-6004-4217
> fax:     +49-(0)89-6004-4620
> www:     http://www.unibw.de/ebusiness/ (group)
>         http://www.heppnetz.de/ (personal)
> skype:   mfhepp
> twitter: mfhepp
>
>
>
Received on Sunday, 22 May 2011 08:49:42 GMT

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