RE: LC responses 28, 48 & 58

Hi Ian!

>-----Original Message-----
>From: public-owl-wg-request@w3.org [mailto:public-owl-wg-request@w3.org]
>On Behalf Of Ian Horrocks
>Sent: Saturday, March 07, 2009 6:50 PM
>To: W3C OWL Working Group
>Subject: LC responses 28, 48 & 58
>
>I drafted them. They all depend on the agreed presentation changes
>and probably shouldn't be sent until those are completed.
>
>Ian

In the proposed answer to LC28

  <http://www.w3.org/2007/OWL/wiki/LC_Responses/FH2>

it is stated:

[[
OWL 2 separates syntax from semantics, and that OWL 2 Full, 
DL, QL, EL and RL are all refer to syntactic variants, 
]]

Frankly, this makes no sense to me. OWL 2 Full is certainly not a "syntactic
variant", just as OWL 1 Full hasn't been.

In the OWL 1 Full spec, there existed semantic-related terms like "OWL Full
interpretation" and "OWL Full entails". And OWL Full was characterized as
follows in a semantic way:
 
<http://www.w3.org/TR/owl-semantics/rdfs.html#5.3>
[[
OWL Full augments the common conditions with conditions 
that force the parts of the OWL universe 
to be the same as their analogues in RDF.
[...]
]]

With this in mind, in the RDF-Based Semantics document I have used the term
"OWL 2 Full" exclusively to mean the /semantics/. 

But Jonathan Rees had a comment on this:

http://lists.w3.org/Archives/Public/public-owl-comments/2009Jan/0068.html
[[
And are you sure that you want "OWL 2 Full" to be the name of a semantics?
That seems OK to me, but it's sort of weird.  In common use I think it
will be taken to mean a language consisting of a combination of syntax
(RDF in any of its serializations) and
semantics (conditions on interpretation of the OWL 2 vocabulary).
]]

This sounds reasonable to me, so I am strongly inclined to follow this
comment. The term "OWL 2 Full" would then mean the whole language. But not
the syntax alone. This would make no sense to me, because the syntax of OWL
2 Full is RDF, just as for OWL 1 Full and RDFS.

Best,
Michael

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