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daml:collection

From: Brian McBride <bwm@hplb.hpl.hp.com>
Date: Thu, 04 Apr 2002 21:13:58 +0100
Message-Id: <5.1.0.14.0.20020404210226.030d8aa0@0-mail-1.hpl.hp.com>
To: RDF Core <w3c-rdfcore-wg@w3.org>
Folks,

At the last SW coordination group telecon the WEBONT folks indicated that 
removing daml:collection would be a problem for them.  Consequently we 
agreed that the WEBONT chairs would solicit two volunteers from WEBONT to 
work with RDFCore to identify to figure out what they need and see if we 
can work out a solution.  I believe that DanC and Jos volunteered.

As I understand things, the key requirements are:

   o a compact and relatively conventient xml syntax
   o a way to represent a closed collection, i.e. our present understanding 
of issue * rdfms-seq-representation

I understand it is not a requirement that the resulting RDF graph structure 
is a list.  Of course I defer to the WEBONT folks to state their 
requirements; I'm saying this just to get things started.

Amongst the possible solutions, the ones I can see are:

   o bless daml:collection as defined as part of RDF
   o WEBONT define a syntactic transform which turns whatever syntax they 
choose into regular rdf syntax before RDF sees it
   o RDFCORE defines a way of closing RDF's existing containers; Pat's 
suggestion of an end marker as that is closer to a list structure and 
doesn't involve integers (datatypes aghhhhhhhhhhhhhh!)
   o WEBONT defines a way of closing RDF's existing containers

Other suggestions/comments?

Brian
Received on Thursday, 4 April 2002 15:55:59 EST

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