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Re: Semantics for modification of annotations

From: Benjamin Young <bigbluehat@hypothes.is>
Date: Wed, 15 Oct 2014 14:43:41 -0400
Message-ID: <CAE3H5FJaYf8G2CStJ_G6PDynGCPJ2qW5mq0NV=JV+B+bUkG3bQ@mail.gmail.com>
To: philip.kershaw@stfc.ac.uk
Cc: public-openannotation <public-openannotation@w3.org>
Depending on how you accept and store the changes (and how you wish to
represent them later), you could use Dublin Core terms such as
replaces, isReplacedBy, isVersionOf, etc.

They're in use in the RDFa of the DCMI Metadata Terms page:

There is also RFC 5829 "Link Relation Types for Simple Version
Navigation between Web Resources"

The format of the later is more terse (in either the HTTP headers or
in the markup), but may not get you the RDF-based semantic value for
your graph storage--as I'm not sure how these link relationships are
considered in the RDF tooling world (though I'd be interested to
learn, if anyone knows).

Hope something in there was helpful!
Developer Advocate

On Wed, Oct 15, 2014 at 12:21 PM,  <philip.kershaw@stfc.ac.uk> wrote:
> Hi all,
> I have a question about best practice for modification of annotations.  We have a project CHARMe, where we have built a system based on Open Annotation that enables scientists and researchers to annotate climate science datasets and satellite observations.  This uses a Javascript-based client application for data entry and a server application built on top of Jena to store triples.  There is a simple web service API which uses JSON-LD for its serialisation.
> Users would like the ability to modify existing annotations, typically to correct minor mistakes made on initial submission.  From a user perspective this is a simple requirement but I’m a conscious that there is a potential can of worms in the way these changes are managed in the triple store.  The existing system has support for deletion of annotations.  In this case annotations are moved to a separate graph to indicate they have deleted status.  One option for modification is to delete the current version and add a new one.  Is the best approach and what if any would be the best way to link between the new annotation and the old version which it supersedes?
> Any help and guidance much appreciated.
> Regards,
> Phil--
> Scanned by iCritical.
Received on Wednesday, 15 October 2014 18:44:10 UTC

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