- From: Little, Chris <chris.little@metoffice.gov.uk>
- Date: Wed, 12 Apr 2017 23:00:45 +0000
- To: "bart_van_leeuwen@netage.nl" <bart_van_leeuwen@netage.nl>
- CC: "public-sdw-comments@w3.org" <public-sdw-comments@w3.org>, "christoph@hbz-nrw.de" <christoph@hbz-nrw.de>, "Simon.Cox@csiro.au" <Simon.Cox@csiro.au>
- Message-ID: <3DAD8A5A545D7644A066C4F2E82072883E2B9B72@EXXCMPD1DAG4.cmpd1.metoffice.gov.uk>
Bart, As we can have fractions of a second, why do we need to raise an issue about adding the complications of fragments from another scheme? Or adding milliseconds, but not centidays, megayears, etc. Would you be happy to close the issue? Or write a brief example? Chris From: Bart van Leeuwen [mailto:bart_van_leeuwen@netage.nl] Sent: Monday, April 10, 2017 3:12 PM To: Christoph, Pascal Cc: public-sdw-comments@w3.org Subject: Re: Time Ontology: Smallest possible increment-of-time Hi, I had exactly the same observation as Pascal, including the same revelation that xsd:decimal actually allows fractions. This was also my comment on a earlier request for review [1] I've created ISSUE-157 to add a example with fragments to the specification [1] https://lists.w3.org/Archives/Public/public-sdw-wg/2016Dec/0196.html Met Vriendelijke Groet / With Kind Regards Bart van Leeuwen [cid:_2_D93F5CB4D93F5A2C004DFA27C12580FE] twitter: @semanticfire tel. +31(0)6-53182997 Netage B.V. http://netage.nl<http://netage.nl/> Esdoornstraat 3 3461ER Linschoten The Netherlands [cid:_2_D96B2B7CD93F6ECC004DFA27C12580FE] -----Original Message----- From: Christoph, Pascal [mailto:christoph@hbz-nrw.de] Sent: Friday, April 07, 2017 11:35 AM To: public-sdw-comments@w3.org Subject: Re: Time Ontology: Smallest possible increment-of-time Ah - uh. I see now that 'xsd:decimal' already allows exactly for the fractions of a second! Duh! pascal From: "Christoph, Pascal" <christoph@hbz-nrw.de<mailto:christoph@hbz-nrw.de>> To: public-sdw-comments@w3.org<mailto:public-sdw-comments@w3.org> Date: 07-04-2017 12:24 Subject: Time Ontology: Smallest possible increment-of-time ________________________________ Hello *, what's the smallest duration of time one can specifiy with the proposed time ontology? I wonder if it's really a full "second"? (Couldn't find anything smaller but may have missed it). Analog to spatial ontology, where you can define very (indefinitely?) small spatial dimensions, this should be also possible within the time ontology. If you would allow 'https://www.w3.org/TR/xmlschema11-2/#nt-seFrag' (instead of xsd:decimal) as datatype for time:second you wouldn't even need tons of new properties to be able to be arbitrarily precise. If it's too nice for one to always assume decimal numbers when hitting time:second I would propose one new time:TemporalUnit property (say: time:secondFrag) which would suffice to define every time(t), where "t < 1s". pascal [attachment "signature.asc" deleted by Bart van Leeuwen/netage]
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Received on Wednesday, 12 April 2017 23:01:24 UTC