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Re: PROV-ISSUE-493: prov:type has type Value; valid values too general, include number, datetime, boolean, etc. [prov-dm]

From: Luc Moreau <l.moreau@ecs.soton.ac.uk>
Date: Tue, 25 Sep 2012 16:44:59 +0100
Message-ID: <EMEW3|e5e8113fb6f944d5918233fe095e008fo8OGj008l.moreau|ecs.soton.ac.uk|5061D17B.8030905@ecs.soton.ac.uk>
To: public-prov-wg@w3.org
Hi all,

Following last week's resolution
http://www.w3.org/2011/prov/meeting/2012-09-20#resolution_2
I am now closing this issue.

Regards,
Luc

On 04/09/2012 18:18, Provenance Working Group Issue Tracker wrote:
> PROV-ISSUE-493: prov:type has type Value; valid values too general, include number, datetime, boolean, etc. [prov-dm]
>
> http://www.w3.org/2011/prov/track/issues/493
>
> Raised by: Stephan Zednik
> On product: prov-dm
>
> The value of prov:type is a Value (http://www.w3.org/TR/prov-dm/#term-value) which has the following definition:
>
> A value ◊ is a constant such as a string, number, time, qualified name, IRI, and encoded binary data, whose interpretation is outside the scope of PROV. Values can occur in attribute-value pairs.
>
> Each kind of such values is called a datatype. Use of the following data types is recommended.
>
> The RDF-compatible [RDF-CONCEPTS] types, including those taken from the set of XML Schema Datatypes [XMLSCHEMA11-2];
> Qualified names introduced in this specification.
> The normative definitions of these datatypes are provided by their respective specifications.
>
> This means that numbers, datetimes, booleans, and unstructured strings are valid values of prov:type.  The prov value section on RDF compliance also seems to suggest there should be a prov:type datatype property in prov-o, which to my knowledge does not currently exist.
>
> So my question is, are we ok with numbers, datetimes, booleans as valid values of prov:type?  All of the examples in the DM document appear to use qnames for values of prov:type.
>
> Second, is there support for a proposal to restrict values of prov:type to qnames?
>
>
>
>    

-- 
Professor Luc Moreau
Electronics and Computer Science   tel:   +44 23 8059 4487
University of Southampton          fax:   +44 23 8059 2865
Southampton SO17 1BJ               email: l.moreau@ecs.soton.ac.uk
United Kingdom                     http://www.ecs.soton.ac.uk/~lavm
Received on Tuesday, 25 September 2012 15:46:01 GMT

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