RE: PROV-ISSUE-142 (Tlebo): Can roles only be Literals? [Data Model]

Does this imply that all qualifiers must be typed literals?

--Stephan

-----Original Message-----
From: Luc Moreau [mailto:L.Moreau@ecs.soton.ac.uk] 
Sent: Sunday, November 06, 2011 10:00 AM
To: Jim McCusker
Cc: Provenance Working Group WG
Subject: Re: PROV-ISSUE-142 (Tlebo): Can roles only be Literals? [Data
Model]

Hi Jim,

It is intentionally that we use typed literals here, and not identifiers.

If we allow identifiers, then in effect we would have introduced a new
relation;  it would be better defined as prov-dm relation, rather than
hidden in a qualifier.

What's wrong with "the role of president"  here?

Luc

On 06/11/11 15:19, Jim McCusker wrote:
> Make Roles resources like Entities. Classes of Roles (Creator, 
> Publisher, PrincipleInvestigator) are instantiated for each Entity. Of 
> course, this is rather similar to what's been rejected (?), but is 
> still the best choice, IMO. This would be, for instance, "Barack 
> Obama's role as president", as opposed to "the role of president", 
> which would be a class.
>
> Role could also be an extension of skos:Concept and allow you to 
> express "the role of president" directly without custom instantiation.
>
> Jim
>
> On Sun, Nov 6, 2011 at 8:38 AM, Luc Moreau<L.Moreau@ecs.soton.ac.uk>
wrote:
>    
>> Ok, so, what's alternative suggestion ?
>>
>> Professor Luc Moreau
>> Electronics and Computer Science
>> University of Southampton
>> Southampton SO17 1BJ
>> United Kingdom
>>
>>
>> On 6 Nov 2011, at 12:59, "Jim McCusker"<mccusj@rpi.edu>  wrote:
>>
>>      
>>> This is a misunderstanding of a URI literal versus URI resource. 
>>> When a URI resource is used, it can link to that resource when it 
>>> has assertions made about it. This is not possible or intended with 
>>> URI literals.
>>>
>>> Jim
>>>
>>> On Sun, Nov 6, 2011 at 2:36 AM, Luc Moreau<L.Moreau@ecs.soton.ac.uk>
wrote:
>>>        
>>>> Hi Tim,
>>>>
>>>> But doesn't this include URIs by means of typed literals?
>>>>
>>>> Professor Luc Moreau
>>>> Electronics and Computer Science
>>>> University of Southampton
>>>> Southampton SO17 1BJ
>>>> United Kingdom
>>>>
>>>> On 6 Nov 2011, at 01:20, "Provenance Working Group Issue
Tracker"<sysbot+tracker@w3.org>  wrote:
>>>>
>>>>          
>>>>> PROV-ISSUE-142 (Tlebo): Can roles only be Literals? [Data Model]
>>>>>
>>>>> http://www.w3.org/2011/prov/track/issues/142
>>>>>
>>>>> Raised by: Timothy Lebo
>>>>> On product: Data Model
>>>>>
>>>>> prov-dm, 5.5.1 Qualifier:
>>>>>
>>>>> "The value associated with a role attribute must be conformant with
Literal."
>>>>>
>>>>>
>>>>>
>>>>> Will this prevent PROV-O from using URIs to cite roles?
>>>>>
>>>>> Restricting roles to literals will be severely limiting for PROV-O and
semantic web applications, since literals cannot be described or served as
linked data, and thus consumers will be unable to determine more information
about what the role means.

>>>>>
>>>>>
>>>>>
>>>>>            
>>>>
>>>>
>>>>          
>>>
>>>
>>> --
>>> Jim McCusker
>>> Programmer Analyst
>>> Krauthammer Lab, Pathology Informatics Yale School of Medicine 
>>> james.mccusker@yale.edu | (203) 785-6330 
>>> http://krauthammerlab.med.yale.edu
>>>
>>> PhD Student
>>> Tetherless World Constellation
>>> Rensselaer Polytechnic Institute
>>> mccusj@cs.rpi.edu
>>> http://tw.rpi.edu
>>>        
>>
>>      
>
>
>

Received on Sunday, 6 November 2011 17:24:04 UTC