Best Practices for OWL and LOD

Hi,

Forgive me if this has been discussed elsewhere/already, but I was
wondering if we need some kind of LOD best practice when it comes to
using OWL to describe our ontologies on the linked data web. I'd like to
futureproof any LOD produced at OS for the days when we can reason on
the linked data web, and as such I'd like to use OWL (and not just
RDFS). However as the LOD is all about (large amounts of) data it seems
to me that we should restrict ourselves to either of the tractable
fragments:

#  OWL 2 QL is aimed at applications that use very large volumes of
instance data, and where query answering is the most important reasoning
task. In OWL 2 QL, conjunctive query answering can be implemented using
conventional relational database systems. Using a suitable reasoning
technique, sound and complete conjunctive query answering can be
performed in LOGSPACE with respect to the size of the data (assertions).
As in OWL 2 EL, polynomial time algorithms can be used to implement the
ontology consistency and class expression subsumption reasoning
problems. The expressive power of the profile is necessarily quite
limited, although it does include most of the main features of
conceptual models such as UML class diagrams and ER diagrams.

# OWL 2 RL is aimed at applications that require scalable reasoning
without sacrificing too much expressive power. It is designed to
accommodate OWL 2 applications that can trade the full expressivity of
the language for efficiency, as well as RDF(S) applications that need
some added expressivity. OWL 2 RL reasoning systems can be implemented
using rule-based reasoning engines. The ontology consistency, class
expression satisfiability, class expression subsumption, instance
checking, and conjunctive query answering problems can be solved in time
that is polynomial with respect to the size of the ontology. 

(more info http://www.w3.org/TR/owl2-profiles/)

Should this be mentioned in the LOD tutorials being produced?

Interested in your thoughts.

John

--
Dr John Goodwin

Research Scientist

Ordnance Survey Research 

C530, Romsey Road, SOUTHAMPTON, United Kingdom, SO16 4GU 

Phone: +44 (0) 23 80305756 | Fax: +44 (0) 23 80305072 

www.ordnancesurvey.co.uk/research | John.Goodwin@ordnancesurvey.co.uk 

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Received on Tuesday, 24 February 2009 11:26:54 UTC