- From: <Simon.Cox@csiro.au>
- Date: Fri, 21 Apr 2017 05:25:51 +0000
- To: <public-sdw-wg@w3.org>
-----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 >> >> >> >
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