Fwd: DataCube: owl:DisjointWith in ttl file

Hi everyone,

Has anything ever happened with this old comment?
It doesn't look like a comment from us, but apparently the GLD address redirects to ours?

Antoine


-------- Original Message --------
Subject:  DataCube: owl:DisjointWith in ttl file
Resent-Date:  Sun, 29 May 2016 19:31:27 +0000
Resent-From:  <public-dwbp-comments@w3.org>
Date:  Fri, 27 May 2016 17:45:06 +0200
From:  Bert Van Nuffelen <bert.van.nuffelen@tenforce.com>
To:  <public-dwbp-comments@w3.org>



Hi,

---
before making my comment: I reacted to the email-address  (public-gld-comments@w3.org <mailto:public-gld-comments@w3.org>) mentioned on the datacube vocabulary and this forwarding me to this. I suggest that the introduction is adapted to reflect the right address.
---


I would like to understand why a MeasureProperty is declared disjoint from an AttributeProperty and DimensionProperty in the turtle file while this is not mention in the text of *https://www.w3.org/TR/vocab-data-cube/.*

qb:MeasureProperty a rdfs:Class, owl:Class;
      rdfs:label "Measure property"@en;
      rdfs:comment "The class of components which represent the measured value of the phenomenon being observed"@en;
      rdfs:subClassOf qb:ComponentProperty;
      owl:disjointWith qb:AttributeProperty;
      owl:disjointWith qb:DimensionProperty;
      rdfs:isDefinedBy <http://purl.org/linked-data/cube>;
      .

I believe that this constraint is too strict.
Datasets can categories the same property differently. So a merge of 2 datasets resulting from 2 different origins is very lickely to violate this constraint.
It means that the merge is inconsistent and hence requires adaptations which cannot be done via a machine since the choice of the propertycategory is business decision.

I would propose to remove the disjoint declarations and move them in a recommendation section stating e.g. "A coherent QB dataset categorizes each used component property uniquely into one of the categories Attributes, Dimensions or Measures."

kind regards,

Bert



-- 
Bert Van Nuffelen

*_____________________________________*

Bert Van Nuffelen

Senior Semantic Technologies and Open Data Architect


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Received on Monday, 25 July 2016 14:13:55 UTC