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DC-ARCHITECTURE  September 2015

DC-ARCHITECTURE September 2015

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Subject:

[RDF-AP] DC 2015 slides, framework for RDF constraint languages

From:

Kai Eckert <[log in to unmask]>

Reply-To:

DCMI Architecture Forum <[log in to unmask]>

Date:

Thu, 3 Sep 2015 08:22:13 -0300

Content-Type:

multipart/signed

Parts/Attachments:

Parts/Attachments

text/plain (55 lines) , signature.asc (55 lines)

Dear all,

Thomas and I wrote a paper for DC 2015 about the creation of a framework
that supports the easy implementation of constraint languages using
SPARQL mappings. In my talk yesterday, I got very positive feedback.
Bottom-line: we should implement it completely ;-)

Here are the slides:

http://de.slideshare.net/kaiec/guidance-please-towards-a-framework-for-rdfbased-constraint-languages

Here is the link to the full text:

http://dcevents.dublincore.org/IntConf/dc-2015/paper/view/386

Abstract:

In the context of the DCMI RDF Application Profile task group and the
W3C Data Shapes Working Group solutions for the proper formulation of
constraints and validation of RDF data on these constraints are being
developed. Several approaches and constraint languages exist but there
is no clear favorite and none of the languages is able to meet all
requirements raised by data practitioners. To support the work, a
comprehensive, community-driven database has been created where case
studies, use cases, requirements and solutions are collected. Based on
this database, we have hitherto published 81 types of constraints that
are required by various stakeholders for data applications. We are using
this collection of constraint types to gain a better understanding of
the expressiveness of existing solutions and gaps that still need to be
filled. Regarding the implementation of constraint languages, we have
already proposed to use high-level languages to describe the
constraints, but map them to SPARQL queries in order to execute the
actual validation; we have demonstrated this approach for the Web
Ontology Language in its current version 2 and Description Set Profiles.
In this paper, we generalize from the experience of implementing OWL 2
and DSP by introducing an abstraction layer that is able to describe
constraints of any constraint type in a way that mappings from
high-level constraint languages to this intermediate representation can
be created more or less straight-forwardly. We demonstrate that using
another layer on top of SPARQL helps to implement validation
consistently accross constraint languages, simplifies the actual
implementation of new languages, and supports the transformation of
semantically equivalent constraints across constraint languages.

Cheers,

Kai
-- 
Prof. Dr. Kai Eckert, Stuttgart Media University
http://www.kaiec.org/
PGP Public Key:   http://www.kaiec.org/2012/pgp/pubkey.asc
A987  3760  12A6  35A4  E6D2  577E  513A  6B84  C755  5A67


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