Change Proposal: Date Time in XML Schema

Authors

Ben Clifford

Subject

XML schema http://openprovenance.org/model/v1.01.a

Background

Definition of time in Time annotations does not seem correct.

Problem addressed

xs:time represents an instant of time that recurs every day.

Proposed solution

it should be an xs:dateTime

Rationale for the solution

The intent from the OPM spec appears (clearly?) to be a non-repeating time specified over all of eternity. The use of xsd:time appears to be a mistake in the XSD schema.

Comments

Community is invited to provide comments on proposals.

Comment 1 by Simon Miles

Makes sense to me.

+

Yes, this is a mistake, and using xsd:DateTime will also bring the XML serialization into alignment with most RDF ontologies representing instants in time, for example the "Time Ontology in OWL" W3C working draft: http://www.w3.org/TR/2006/WD-owl-time-20060927/#calclock

Vote

Jim Myers - abstain

Luc Moreau, yes.

Simon Miles, yes

Paul Groth, yes

Joe Futrelle, yes

Paolo Missier, yes

Outcome

Result is: yes: 5/abstention: 1.

The proposal is accepted.

-- LucMoreau - 15 Jun 2009
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