W3C home > Mailing lists > Public > public-openannotation@w3.org > April 2013

multiple Selectors and Sources

From: Bob Morris <morris.bob@gmail.com>
Date: Sun, 21 Apr 2013 14:22:48 -0400
Message-ID: <CADUi7O6d_JswjY-q0Fn6vE4P7fejO7E-b93y-2sbD5MojX39dQ@mail.gmail.com>
To: public-openannotation <public-openannotation@w3.org>
I have come to doubt the need in [1]   for the prohibition on multiple
Selectors and perhaps for the prohibition on multiple Sources.

It is common for us to encounter multiple records in a single data
set, each requiring a different Selector and  to each of which we must
apply the same Body assertions.  Similarly, in our environment of
replicated data sets having different URIs, we would see the same
Selectors against several Sources.

My present feeling is that the current Multiplicity mechanisms have no
difficulty handling these cases, possibly even the cases of both
multiple Selectors and multiple Sources in the same annotation.

At the moment, I do not see what arguments there are for these two
multiplicity restrictions that are different from the historical ones
in [2] for Bodies

[1]February 2013 Draft,
http://www.openannotation.org/spec/core/20130208/index.html
[2] May 2012 Draft http://www.openannotation.org/spec/core/20120509/index.html

Bob Morris
--
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://wiki.filteredpush.org
http://www.cs.umb.edu/~ram
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Received on Sunday, 21 April 2013 18:23:16 UTC

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