See attached documents and message from the LegalML group. Lets talk about this at tomorrow’s meeting. tc "If something is not worth doing, it`s not worth doing well " -- Peter Drucker Toby Considine TC9, Inc OASIS TC Chair: oBIX & WS-Calendar OASIS TC Editor: EMIX, Energy Interoperation SGIP Smart Grid Architecture Committee Email:
Toby.Considine@gmail.com Phone: (919)619-2104
http://www.tcnine.com blog:
http://www.NewDaedalus.com From: Robin Cover [mailto:
robin@oasis-open.org] Sent: Wednesday, October 17, 2012 7:19 PM To: Toby Considine Cc: Robin Cover Subject: Fwd: [legalruleml] Time Instants or Time Points Toby, the note below made me think of WS-Calendar, EMIX... and your work on time intervals. Two documents attached are about the OMG's work on Date-Time Vocabulary Best, - Robin ---------- Forwarded message ---------- From: Tara Athan <
taraathan@gmail.com > Date: Wed, Oct 17, 2012 at 6:01 PM Subject: [legalruleml] Time Instants or Time Points To: "
legalruleml@lists.oasis-open.org " <
legalruleml@lists.oasis-open.org > There is a relatively recent date-time ontology published by OMG (
http://www.nist.gov/customcf/get_pdf.cfm?pub_id=911074 ) that addresses time scale granularity and also solves the problem of duration (is 1 month greater, equal or less than 30 days?) While LegalRuleML is not supposed to be dependent on any particular ontology, this work does provide a useful conceptualization that allows certain intervals of time to be specified with a single datum. For example the date 2012-10-12 corresponds to a particular interval of time which can be specialized to a particular 24 hr interval when a timezone is added. This general concept of a point on a time scale with a particular granularity is called "time point". It is more general than a "point in time" or "time instant", but could include that concept if the time scale is continuous. I proposed that we adopt this terminology, (but not the ontology) by referring to a collection of <ruleml:Time> elements as <lrml:TimePoints> This also avoids the unfortunate plural "Times", which could be confused with multiplication or repitition, while retaining generality regarding the granularity, if any, of the time scale. Example <lrml:TimePoints> <ruleml:Time key="t1"> <ruleml:Data xsi:type="xs:dateTime">2012-07-21T00:00:00Z</ruleml:Data> </ruleml:Time> <ruleml:Time key="t2"> <ruleml:Data xsi:type="xs:date">2012-07-21</ruleml:Data> </ruleml:Time> </lrml:TimePoints> Tara -- Robin Cover OASIS, Director of Information Services Editor, Cover Pages and XML Daily Newslink Email:
robin@oasis-open.org Staff bio:
http://www.oasis-open.org/people/staff/robin-cover Cover Pages:
http://xml.coverpages.org/ Newsletter:
http://xml.coverpages.org/newsletterArchive.html Tel: +1 972-296-1783 Attachment: NIST-Date-Time-Vocab-911074.pdf Description: Adobe PDF document Attachment: OMG-Date-Time-Vocab-12-01-02.pdf Description: Adobe PDF document