RE: OWL-Time - Individual months, standard temporal durations

I propose to accept the changes described below and committed to the branch mentioned.

This also affects ISSUE-124 because it will reverse the proposal to deprecate :Year, instead elaborating the definition and providing definitions for the other standard durations alongside.

If I hear no objections by the end of the week will proceed to merge the spec and ontology, and close the issues.

From: Cox, Simon (L&W, Clayton)
Sent: Sunday, 12 February, 2017 23:11
To: 'public-sdw-wg@w3.org' <public-sdw-wg@w3.org>
Cc: chris.little@metoffice.gov.uk
Subject: OWL-Time - Individual months, standard temporal durations

ISSUE-141, ISSUE-142

I have updated the ontology files and the specification document, adding

-          The months January...December as individuals of the class MonthOfYear, following the pattern of DayOfWeek, but in a new namespace http://www.w3.org/ns/time-gregorian/

o   :MonthOfYear is also a subClassOf DateTimeDescription with all properties suppressed except :month and the unitType fixed to :unitMonth

-          Adding the durations Second, Minute, Hour, Data, Week, Month to the existing Year, following its pattern

o   Also making them all subclasses of Duration as well

This is a simplification from earlier proposals. January...December are only individuals now, not classes.

The draft OWL-Time spec document has been updated to incorporate these changes.

All in the branch
https://github.com/w3c/sdw/tree/simon-time-individuals
with a pull-request to merge into gh-pages.
https://github.com/w3c/sdw/pull/552

Enjoy.


Simon J D Cox
Research Scientist
Environmental Informatics
CSIRO Land and Water<http://www.csiro.au/Research/LWF>

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