- From: Olaf Hartig <hartig@informatik.hu-berlin.de>
- Date: Thu, 12 May 2011 14:05:53 +0200
- To: public-prov-wg@w3.org
Hey (sorry, I messed something up with the email addresses - I sent some mails to the old XG list - it should be fixed now) On Thursday 12 May 2011 13:42:30 Luc Moreau wrote: > Olaf and Paul, > [...] > Time is important no doubt, and not made explicit in the scenario. > What does it mean to be performedAt? Time at which process execution > took place? In the Provenance Vocabulary prv:performedAt is a possible property of a prv:Execution (representing the completed execution of a process). Thus, yes, prv:performedAt refers to the time at which the execution took place. > Is it instaneous? The rdfs:range of prv:performedAt is xsd:dateTime. Hence, it is instaneous. And (before you ask ;) we always understood this instant to refer to the point in time when the execution completed - we should make that more explicit in the documentation. > has it a duration? The Provenance Vocabulary has nothing for durations. > Is it the time at which > the DataItem > is produced? If the prv:Execution is a prv:DataCreation and the prv:DataItem has been prv:createdBy that, then yes. Olaf > Can we express these questions and answer them independently of a > terminology? > > Luc
Received on Thursday, 12 May 2011 12:08:50 UTC