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oa:equivalent not yet in core-schema.xml

From: Bob Morris <morris.bob@gmail.com>
Date: Tue, 7 Aug 2012 15:22:27 -0400
Message-ID: <CADUi7O7rQmgTEdYcGcCiY9Bit3TW+WW+mVDphMfdOvnN=P=bGg@mail.gmail.com>
To: Robert Sanderson <azaroth42@gmail.com>
Cc: public-openannotation <public-openannotation@w3.org>
As far as I can tell, oa:equivalent is not modeled in
http://www.openannotation.org/spec/core/core-schema.xml as of this
date.

I suppose this will fall in Stian's volunteer effort, because  the
formal semantics of "The subject and object resources of the
oa:equivalent relationship represent the same Annotation"  will
require  some notion of "same" for instances, e.g. owl:sameAs.   At
the moment, it is unclear to me how one can specify formal semantics
that would restrict oa:equivalent to its intended use, i.e. where
Target and Body have identical URIs, which is what Figure 2.4 of the
core spec seems to be suggesting.


Robert A. Morris

Emeritus Professor  of Computer Science
UMASS-Boston
100 Morrissey Blvd
Boston, MA 02125-3390

IT Staff
Filtered Push Project
Harvard University Herbaria
Harvard University

email: morris.bob@gmail.com
web: http://efg.cs.umb.edu/
web: http://etaxonomy.org/mw/FilteredPush
http://www.cs.umb.edu/~ram
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Received on Tuesday, 7 August 2012 19:22:54 GMT

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