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Re: PROV-ISSUE-142 (Tlebo): Can roles only be Literals? [Data Model]

From: Jim McCusker <mccusj@rpi.edu>
Date: Mon, 7 Nov 2011 13:15:44 -0500
Message-ID: <CAAtgn=SauHa3v0_uhid7P_hZyuvQZW839DxEsjxTFd_i1EREBQ@mail.gmail.com>
To: Paolo Missier <Paolo.Missier@ncl.ac.uk>
Cc: public-prov-wg@w3.org
On Mon, Nov 7, 2011 at 12:42 PM, Paolo Missier <Paolo.Missier@ncl.ac.uk> wrote:
> DM says:
> 5.5.5 Literal
> Literals represent data values such as particular string or integers.
> My understanding is it's always been used in the standard grammar production
> meaning (eg: http://savage.net.au/SQL/sql-2003-2.bnf.html#literal). Not so?

I think a clearer definition would be:

A Provenance Literal is a "leaf" value. It does not explicitly have
any outgoing relations (in SW-ish: Is not a subject of any statement)
in the PROV data model. Any outgoing relations from a Provenance
Literal is out of scope for the PROV DM.

Jim McCusker
Programmer Analyst
Krauthammer Lab, Pathology Informatics
Yale School of Medicine
james.mccusker@yale.edu | (203) 785-6330

PhD Student
Tetherless World Constellation
Rensselaer Polytechnic Institute
Received on Monday, 7 November 2011 18:16:38 UTC

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