- From: Patrick Stickler <patrick.stickler@nokia.com>
- Date: Mon, 15 Mar 2004 09:51:47 +0200
- To: "ext Jeremy Carroll" <jjc@hplb.hpl.hp.com>
- Cc: ext Pat Hayes <phayes@ihmc.us>, www-archive@w3.org, chris@bizer.de
On Mar 12, 2004, at 17:05, ext Jeremy Carroll wrote:
> Another tricky issue which we need a simple solution to is time.
>
> Particularly for publishers who are not using signatures, (which is
> almost everyone at the moment), we may want to provide vocabulary to
> time-out an affirmation. e.g. an affirmation may have a start time and
> an end time explicitly associated with it. (or implicitly using OWL
> semantics say).
>
> Jeremy
>
How about a simple property such as
trix:validUntil
a trix:GraphQualificationProperty ;
rdfs:description "Specifies the date after which the graph is no
longer considered valid (or asserted)." ;
rdfs:domain trix:Graph ;
rdfs:range xsd:date .
Thus, expiration is disjunct from assertion. Even quoted graphs can
expire. But
an expire graph is clearly not asserted by the publisher.
Eh?
Patrick
--
Patrick Stickler
Nokia, Finland
patrick.stickler@nokia.com
Received on Monday, 15 March 2004 02:52:15 UTC