- From: Provenance Working Group Issue Tracker <sysbot+tracker@w3.org>
- Date: Mon, 21 Nov 2011 15:06:57 +0000
- To: public-prov-wg@w3.org
PROV-ISSUE-156 (TLebo): information flow ordering record - no temporal constraints? [Data Model] http://www.w3.org/2011/prov/track/issues/156 Raised by: Timothy Lebo On product: Data Model According to 6.3 Activity Ordering Record "wasInformedBy" is: "An information flow ordering record is a representation that an entity was generated by an activity, before it was used by another activity." But the only constraint does not include the temporal aspects described above: "Given two activity records identified by a1 and a2, the record wasInformedBy(a2,a1) holds, if and only if there is an entity record identified by e and sets of attribute-value pairs attrs1 and attrs2, such that wasGeneratedBy(e,a1,attrs1) and used(a2,e,attrs2) hold." Does the temporal constraint fall out of constraints that apply to wasGeneratedBy and used? * If so, could this be made explicit? * If not, can "attrs1" and "attrs2" be elaborated to include the "time used" and "time generated" AND their constrained ordering? Thanks, Tim
Received on Monday, 21 November 2011 15:07:06 UTC