OWL-Time Also related to ISSUE-182



-----Original Message-----
From: Joshua Lieberman [mailto:jlieberman@tumblingwalls.com] 
Sent: Thursday, 13 April, 2017 04:55
To: Little, Chris <chris.little@metoffice.gov.uk>
Cc: Le Phuoc, Danh <danh.lephuoc@tu-berlin.de>; Cox, Simon (L&W, Clayton) <Simon.Cox@csiro.au>; public-sdw-wg@w3.org; public-sdw-comments@w3.org
Subject: Re: W3C Draft OWL-Time ontology for final review.

owl:Class is a subclass of rdfs:Class

> On Apr 12, 2017, at 14:33, Little, Chris <chris.little@metoffice.gov.uk> wrote:
> 
> Hi Danh,
> 
> Thanks for this.
> 
> My first thought is that "RDF Class" is a typo and it should be "RDFS Class". "RDF" should appear for the Properties. There is no "RDF:Class". My second thought is the same!
> 
> I have no experience of OWL, or Turtle, so I assume owl:class is an inheriting subclass of rdfs:Class, but Simon or someone else will have to confirm or correct me.
> 
> Chris
> 
>> -----Original Message-----
>> From: Le Phuoc, Danh [mailto:danh.lephuoc@tu-berlin.de]
>> Sent: Thursday, April 06, 2017 10:35 PM
>> To: Little, Chris; Simon.Cox@csiro.au
>> Cc: public-sdw-wg@w3.org; public-sdw-comments@w3.org
>> Subject: Re: W3C Draft OWL-Time ontology for final review.
>> 
>> Hi Chris and Simon,
>> 
>> I would like to thank you for a nice work. I’ve made a quick review 
>> on the content, I have following questions/comments:
>> 
>> In the document at http://w3c.github.io/sdw/time/, in each 
>> description table of  time:Instant, time:Interval, 
>> time:ProperInterval, time:TemporalEntity, time:TemporalPosition, 
>> time:TimePosition, the heading row you use RDF Class but the rest you 
>> use RDFS Class. I wonder if you have any particular intention for using either of them.
>> 
>> Besides, OWL-Time is introduced as an OWL-2 DL ontology, in the 
>> Turtle file at https://raw.githubusercontent.com/w3c/sdw/gh-

>> pages/time/rdf/time.ttl, all the definitions use owl:Class and 
>> owl:ObjectProperty but there is no sign of using rdfs:Class, so, is 
>> there a reason for refering RDFS Class in the document? A long this 
>> line, I’m also curious about RDF Property.
>> 
>> Best,
>> 
>> Danh
>> 
>> On 06/04/2017, 17:30, "Little, Chris" <chris.little@metoffice.gov.uk>
>> wrote:
>> 
>>    Dear Colleagues,
>> 
>>    The latest, and hopefully last, draft W3C Time Ontology in OWL is 
>> at http://w3c.github.io/sdw/time/ , after a lot of hard work by Simon 
>> Cox.
>> 
>>    Please could you consider reviewing it and commenting in the next 
>> two weeks, preferably before Easter, though late comments may be 
>> addressed.
>> 
>>    Please also pass it on to anyone you think might be interested and 
>> willing to comment.
>> 
>>    In particular, please consider:
>> 
>>    1. Typos.
>> 
>>    2. Whether the background and explanatory text is clear, 
>> comprehensive and concise enough?
>> 
>>    3. The structured technical content of the ontology (ontological 
>> experience required!).
>> 
>>    4. Are the examples clear and sufficient?
>> 
>>    5. Any omissions and lacunae?
>> 
>>    Please bear in mind that the purpose of the Ontology is to loosen 
>> the original 2006 Ontology which was too tightly coupled to the 
>> Gregorian calendar, including the ISO 8601 notation, and the 
>> contingent leap seconds. The new ontology should support more 
>> rigorous reasoning about similar calendars that, for example, ignore 
>> leap seconds or even leap days, as well as other temporal reference systems.
>> 
>>    The Ontology could also form a basis for creating other ontologies 
>> for reasoning about drastically different calendars, such as the 
>> Mayan, or the months on Mars or days on Mercury.
>> 
>>    Also, if you have any evidence of the use of the ontology, 
>> including its vocabulary terms, this will be very useful for 
>> establishing implementation evidence for the W3C processes.
>> 
>>    Please reply to public-sdw-comments@w3.org .
>> 
>>    Chris Little
>> 
>>    Chris Little
>>    Co-Chair, OGC Meteorology & Oceanography Domain Working Group
>> 
>>    IT Fellow - Operational Infrastructures
>>    Met Office  FitzRoy Road  Exeter  Devon  EX1 3PB  United Kingdom
>>    Tel: +44(0)1392 886278  Fax: +44(0)1392 885681  Mobile: +44(0)7753
>> 880514
>>    E-mail: chris.little@metoffice.gov.uk  http://www.metoffice.gov.uk

>> 
>>    I am normally at work Tuesday, Wednesday and Thursday each week
>> 
>> 
>> 
> 

Received on Friday, 21 April 2017 05:26:45 UTC